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MUM Europe 2020

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by fgoldstein
Sun Jan 20, 2019 9:05 pm
Forum: General
Topic: My wisp network design is strange?
Replies: 2
Views: 539

Re: My wisp network design is strange?

In general I agree with the design. By using VLANs, you don't have to worry about broadcast traffic, which old-fashioned flat bridged networks suffered from. The only thing that seems odd to me is using separate VLANs for each customer. You can cluster a group of users onto a single VLAN (not so man...
by fgoldstein
Sun Jan 20, 2019 7:32 am
Forum: General
Topic: QoS for VoIP without routing
Replies: 7
Views: 539

Re: QoS for VoIP without routing

The mark-each-port method is looking more problematic because it require me to limit the bw of the computers, rather than prioritize the voice, which is a tiny flow of traffic that does however go to pot when doing a heavy upload. But I notice a lot of options in the queuing section. That does seem ...
by fgoldstein
Fri Dec 28, 2018 8:55 pm
Forum: General
Topic: Easiest way to ensure better voice quality? VLAN? Bandwidth reservation?
Replies: 3
Views: 345

Re: Easiest way to ensure better voice quality? VLAN? Bandwidth reservation?

I asked a related question yesterday (QoS for VoIP without routing) and did get one answer pointing to a PowerPoint that explains how to set up separate queues with bandwidth limits on bridged ports. It also discusses routed networks, not what I'm interested in, but it might help you too. Otherwise,...
by fgoldstein
Fri Dec 28, 2018 5:10 am
Forum: General
Topic: QoS for VoIP without routing
Replies: 7
Views: 539

Re: QoS for VoIP without routing

Thank you! That slide set looks interesting. Summary: Create bridge ports, mark the ports separately for in and out directions, create simple queues for each packet mark with limits on each queue. I may give this a try!
by fgoldstein
Fri Dec 28, 2018 3:11 am
Forum: General
Topic: QoS for VoIP without routing
Replies: 7
Views: 539

Re: QoS for VoIP without routing

I'm sorry, but I can't deal with a long TV show that might at some point give ideas; I'm hoping for a written response. Thanks.
by fgoldstein
Fri Dec 28, 2018 1:17 am
Forum: General
Topic: QoS for VoIP without routing
Replies: 7
Views: 539

Re: QoS for VoIP without routing

I know that full control requires controlling everything, which is impossible with Comcast. So I'm controlling the only GigE ports, which are capable of putting a hell of a lot more input to the upstream than the WiFi devices can. The VoIP upstream goes to hell when a wired computer on the 'tik does...
by fgoldstein
Thu Dec 27, 2018 11:49 pm
Forum: General
Topic: QoS for VoIP without routing
Replies: 7
Views: 539

QoS for VoIP without routing

I'd like to put a VoIP adapter behind my RB951G. However, the RB is only acting as a switch. My cable provider (Comcast) built a router into their cable modem (Technicolor X1 wireless gateway), so they're already doing a round of NAT. Thus I do not want to go into router mode and use the usual IP-ad...
by fgoldstein
Mon Jul 31, 2017 11:19 pm
Forum: Wireless Networking
Topic: HWMP/Mesh trouble with dynamic metric values
Replies: 3
Views: 547

Re: HWMP/Mesh trouble with dynamic metric values

I designed a protocol for that purpose, RSPF, around 30 years ago. Over the following 15 years, a few partial Linux implementations were done. This predated 802.11, and I never got around to writing the v3 that would support that (it was designed around AX.25).
by fgoldstein
Mon Jul 31, 2017 11:06 pm
Forum: Wireless Networking
Topic: New standard 802.11ax
Replies: 25
Views: 7219

Re: New standard 802.11ax

Before 802.11n was finalized, a lot of "pre-n" routers shipped. They worked within a vendor's own world, and might have interoperated. Now we're seeing pre-ax getting ready to ship. I don't think 1024QAM is going to do much good, though on good clean strong 5 GHz PtP links, it could come in handy. T...
by fgoldstein
Wed Jun 01, 2016 3:40 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

You also need a U-NII FCC ID (this is sort of silly but they use different ones for 15.247 and 15.407) and certification of 15.407 compliance filed by the test lab on the FCC approval system. It should be easy to pass the tests (possibly just file the forms), since you have country locking and the g...
by fgoldstein
Wed Jun 01, 2016 12:55 am
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

From the FCC's 2014 U-NII Order (FCC 14-30), adopted April 1, 2014: The manufacture, marketing, sale and importation into the United States of digitally modulated and hybrid devices certified under Section 15.247 operating in the 5.725-5.850 GHz band must cease two years after the effective date of ...
by fgoldstein
Thu May 19, 2016 7:18 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

Hammy's right. The FCC EAS site is querying its equipment approval database in real time. Since 15C approvals for 5 GHz were being given out until March, a fair amount of equipment might have come into the country under that rule. 15C does not require frequency-locking or country-locking. But you ca...
by fgoldstein
Sun Apr 03, 2016 11:54 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

Weren't the deadlines extended again? Common misconception. No, the dealine wasn't extended. What was extended were the specific technical requirements for out-of-band emissions on U-NII-3. It is now possible to get U-NII-3 certification for a device that meets old DTS OOBE rules. It' still a new c...
by fgoldstein
Sun Apr 03, 2016 10:48 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

Awakening the topic again... I see a couple of products, like the new grid dish, that state that they will have country-locked US versions with U-NII-1 and U-NII-3 only. That's not DFS, of course. But I don't even see those approvals on the FCC web site yet. Maybe the lab says they're pending. But t...
by fgoldstein
Thu Aug 20, 2015 5:55 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

So I hope that someone here might be able to dumb it down a little bit for me. Maybe fgoldstein? So am I correct to understand that under FCC regulations the only frequencies that are currently legal to use in the USA are 5745/5825 (for mikrotik products)? ... If Mikrotik gets certified in the part...
by fgoldstein
Fri Jul 24, 2015 11:51 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

I see your confusion, Hammy. I said "the big B5", and you thought that I was omitting the B5c. I was referring to the B5 electronics, with or without antenna, since they both passed DFS together. The B5{c} is a high end radio, basically unique in today's market. But it proves that the Quantenna chip...
by fgoldstein
Fri Jul 24, 2015 1:20 am
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

The B5c is the original B5, connectorized. The B5-Lite is the peer version of the C5 client, not shipping for a few more months. Cambium may have the secret sauce for DFS on Atheros, which would give them a leg up. But all I can find on the FCC web site is the ePMP DFS approval from 2013, old rules....
by fgoldstein
Fri Jul 24, 2015 12:06 am
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

Yes, they've had products that passed DFS, but which ones? UBNT has passed DFS with AirFiber 5X, which uses a custom chip set, not the Atheros Wi-Fi-based chips found in their mass-produced PtMP line. They've had no luck with the Atheros chips (XW). Mimosa has gotten its Quantenna-based products thr...
by fgoldstein
Tue Jul 21, 2015 8:51 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

We didn't elect *anyone* working at the FCC. Looks like the wrong people got the job to be honest. It's not entirely the FCC's fault. MT's competitors do get at least some 15E approvals, though their biggest competitor in the 5 GHz WISP space has had a very hard time getting their new Atheros-based...
by fgoldstein
Thu Jul 16, 2015 7:00 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

Time to elevate this thread. Dynadish looks like a nice radio. It got FCC 15C approval in June, apparently taking advantage of the 6-month extension that they gave on June 1, the day 15C (old ISM band) approvals on 5.7 GHz were scheduled to stop. But like all other MikroTik radios, including QRT, it...
by fgoldstein
Sat Jul 11, 2015 6:24 am
Forum: Beginner Basics
Topic: Basic repeater questions
Replies: 17
Views: 1894

Re: Basic repeater questions

Thank you for those explanations. They look helpful. It's too bad MikroTik hasn't created better documentation. I guess that comes in part from the Linux background -- there are a gazillion features in Linux, put there by many contributors, few of whom bother with documentation. RouterOS includes th...
by fgoldstein
Fri Jul 10, 2015 2:35 am
Forum: Wireless Networking
Topic: Need to setup routerboard as a repeater
Replies: 6
Views: 1681

Re: Need to setup routerboard as a repeater

I am keeping to the topic -- this is posted in Wireless Networking and the original poster asked about how to set up a repeater, which is what I had asked on a different board. I was hoping someone here, who didn't read that board (beginners), would have an answer for the question, other than a poin...
by fgoldstein
Fri Jul 10, 2015 12:08 am
Forum: Wireless Networking
Topic: Need to setup routerboard as a repeater
Replies: 6
Views: 1681

Re: Need to setup routerboard as a repeater

May I repeat the original poster's question slightly differently? How can one set up a single repeater using WDS, not creating a mesh, and still allow the repeater's Ethernet ports to function as a client bridge? So AP at one end with the upstream connection, and a repeater/station at the other end ...
by fgoldstein
Thu Jul 09, 2015 11:55 pm
Forum: Beginner Basics
Topic: Basic repeater questions
Replies: 17
Views: 1894

Re: Basic repeater questions

Jarda, I'm sure it works, but it's hard to identify what does the WDS and what needs to be copied. Hence my request for a "cookbook" approach, which MikroTik doesn't seem to have updated in far too long. Looking at your code, with some questions inserted behind #, add admin-mac=1C:5E:0C:EF:D7:B1 aut...
by fgoldstein
Thu Jul 09, 2015 6:15 am
Forum: Beginner Basics
Topic: Basic repeater questions
Replies: 17
Views: 1894

Re: Basic repeater questions

Thanks Jarda. Those configurations are fairly complex, though. And the WDS pieces seem inconsistent with some of the instructions I've seen. You have a bunch of different made-up MAC-type addresses, for instance, while some (but not all) WDS instructions say that both sides should use the same (00)....
by fgoldstein
Wed Jul 08, 2015 6:50 am
Forum: Beginner Basics
Topic: Basic repeater questions
Replies: 17
Views: 1894

Re: Basic repeater questions

Can we get back to the topic of how to set up the repeater? I too am trying to set up a repeater to improve signals two floors up in the house (the AP is in the basement). I have a couple of 951s to work with other than the 951 (high power) used as the AP. The instructions in the online manual are a...
by fgoldstein
Sat Feb 28, 2015 9:26 pm
Forum: Wireless Networking
Topic: NV2 locked to 6,5Mbit --> Known issue
Replies: 72
Views: 18149

Re: NV2 locked to 6,5Mbit --> Known issue

Following up my July post... the two SXTs have been in the field. Until a few weeks ago, they were happily locking in MCS15 or at least close, being dead line of sight 980 feet apart. They don't often carry much traffic as they're a backup link, but help keep the network resilient. Then about a mont...
by fgoldstein
Wed Feb 25, 2015 8:30 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

U-NII-2 certification (DFS) is definitely NOT a requirement for U-NII-1! In fact Senao Engenius seems to have upgraded its U-NII-1 indoor authorization to outdoor recently, without DFS. To get U-NII-1, the equipment needs to be tested to essentially the *old* U-NII-3 standard, *plus* be country-lock...
by fgoldstein
Tue Feb 24, 2015 8:30 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

If you follow the UBNT forums, you'll know how hard it has become to get DFS approval in the US. The old tests were apparently harder than Europe's, but the new ones make the old ones seem like a walk in the park. I'm not sure if anyone has passed. Mimosa and Cambium might have, but they might have ...
by fgoldstein
Thu Sep 18, 2014 10:02 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

Time to bump the thread again. Forget about U-NII-2 with its difficult DFS rules for the moment. MikroTik seems to be behind on FCC approval on a lot more than that. Several of the recently-announced products, like NetMetal, don't even have FCC ISM-band (15.247) approval. That's usually pretty quick...
by fgoldstein
Wed Jul 30, 2014 2:07 am
Forum: Wireless Networking
Topic: NV2 locked to 6,5Mbit --> Known issue
Replies: 72
Views: 18149

Re: NV2 locked to 6,5Mbit --> Known issue

Now that it's in the field, the two units about .3 km apart, the link is working at full speed. The signal is actually stronger than it was in the office, since they're pointing at each other. Is it possible that using them indoors leads to multipath problems?
by fgoldstein
Tue Jul 29, 2014 11:01 pm
Forum: Wireless Networking
Topic: NV2 locked to 6,5Mbit --> Known issue
Replies: 72
Views: 18149

Re: NV2 locked to 6,5Mbit --> Known issue

One of the two radios is at 6.13, the other at 6.17 (I upgraded it when I unpacked it).
by fgoldstein
Tue Jul 29, 2014 9:09 pm
Forum: Wireless Networking
Topic: NV2 locked to 6,5Mbit --> Known issue
Replies: 72
Views: 18149

Re: NV2 locked to 6,5Mbit --> Known issue

I'm having a similar problem with a pair of SXT 5nD r2 s. I'm about to put them in the field so I hope a remote fix is possible... Putting both of them on a table and getting them to link, before deploying as a PtP link, I got a signal strength of -41 to -56 (if I *try* to keep it low), but the spee...
by fgoldstein
Thu Jul 24, 2014 6:54 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

No, you are NOT allowed to use MikroTik radios (approved only under 15.247) in the US on the lower U-NII bands. Period. If you set the country to US, it will only offer channels in the ISM-band 5745-5825 range (if 20 MHz wide). If you have "no country set", then sure, it'll go down to 5180. I just c...
by fgoldstein
Thu Jul 24, 2014 5:05 pm
Forum: Wireless Networking
Topic: UNII-2, Riddle Me This, Riddle Me That
Replies: 53
Views: 9779

Re: UNII-2, Riddle Me This, Riddle Me That

I have not seen any U-NII (15.407) approvals for MikroTik devices. They do seem to have DFS with radar detection, but they haven't gotten the FCC approval. Thus it is only legal to use them on the ISM frequencies 5725-5850 under 15.249. See my note from yesterday as to why U-NII approval will be so ...
by fgoldstein
Wed Jul 23, 2014 10:39 pm
Forum: Wireless Networking
Topic: US FCC to Relax Rules in the 5 GHz UNII-1 Band
Replies: 6
Views: 3202

Petitions pending to fix problems in the U-NII rules

After the new U-NII rules came out, vendors began to look at the requirements for type acceptance, and discovered a problem that, if not fixed, potentially guts the benefits of the new rules and, because the old rules expire, makes the situation far worse than the status quo. The problem concerns th...
by fgoldstein
Mon Apr 21, 2014 10:29 pm
Forum: Wireless Networking
Topic: US FCC to Relax Rules in the 5 GHz UNII-1 Band
Replies: 6
Views: 3202

Re: US FCC to Relax Rules in the 5 GHz UNII-1 Band

It is definitely time for MikroTik to get "U-NII" 15.407 approval in the US. The ISM-band rules (15.247)for broadband use are being deleted. They have one year (from the official effective date of the rule, probably in June) to get any more 15.247 approvals and another year to sell out stock. The ne...
by fgoldstein
Fri Dec 20, 2013 4:47 pm
Forum: Wireless Networking
Topic: DFS band (5.25-5.725) use approved in the US yet?
Replies: 4
Views: 1178

Re: DFS band (5.25-5.725) use approved in the US yet?

You raise a good question. The US rules for 5725-5850 are quite loose. You don't need to be on a given "channel", and there is no limit on ERP for a point to point link. (It's +36 for point to multipoint.) You can use 5 or 10 MHz channels too, though narrower channels bring in lower transmitter powe...
by fgoldstein
Thu Dec 19, 2013 10:33 pm
Forum: Wireless Networking
Topic: DFS band (5.25-5.725) use approved in the US yet?
Replies: 4
Views: 1178

DFS band (5.25-5.725) use approved in the US yet?

This has come up in the past but I don't see any answers from the past couple of years so forgive me if I'm redundant. Are RouterOS radios, specifically SXTs, approved for use in the United States in the 5250-5350 and 5470-5725 (minus TDWR) bands yet? I've run into a contractor who's installing them...
by fgoldstein
Mon Dec 24, 2012 9:46 pm
Forum: Wireless Networking
Topic: RB951 - All wireless clients disconnect simultaneously
Replies: 6
Views: 3783

Re: RB951 - All wireless clients disconnect simultaneously

I'm having a similar problem! I have two 951s, one of which is in WDS mode and doubling as a station-side bridge. When a link from the AP to a directly-connected (WDS) client gets weak, it sometimes logs an error message, and refuses to re-associate. Once a MAC has timed out, it's blocked until a re...
by fgoldstein
Mon Dec 24, 2012 9:39 pm
Forum: Wireless Networking
Topic: What should i choose, a grid or flatpanel?
Replies: 6
Views: 1024

Re: What should i choose, a grid or flatpanel?

I'd suggest the grid, because the higher gain antenna will be less sensitive, on receive, to other, unwanted signals. It's not the ERP that matters alone but how much else you pick up. Grids are nice in tropical areas like yours. In snow and ice-prone regions, I've seen grids whose rated wind load w...
by fgoldstein
Tue Nov 13, 2012 9:18 pm
Forum: RouterBOARD hardware
Topic: CLOUD CORE ROUTER
Replies: 1374
Views: 1018968

Metarouter?

Will CCR support metarouter? Is there a standard compiler that works with the Tilera? With all of those cores it might be interesting to do some virtualization.
by fgoldstein
Wed Oct 10, 2012 6:54 pm
Forum: Wireless Networking
Topic: Can station bridge also support WDS?
Replies: 6
Views: 1378

Re: Can station bridge also support WDS?

One more note in case anyone is following this thread... A couple of days after this was set up, I plugged in my laptop to the base AP (not the WDS node) and DHCP assigned me the wrong address, one from the .88 block used for initial setup. The remote WDS repeater/bridge still had that block in its ...
by fgoldstein
Sun Oct 07, 2012 11:05 pm
Forum: Wireless Networking
Topic: Can station bridge also support WDS?
Replies: 6
Views: 1378

Re: Can station bridge also support WDS?

Just a follow up... Once the WDS actually connected, the bridge did come back up! I'm happy. I'm still not happy with how erratic connectivity has been, including MAC-based Winbox. At one point that stopped working (I had just changed the name) and I had to do the reset for the 987th time and restar...
by fgoldstein
Sun Oct 07, 2012 7:10 pm
Forum: Wireless Networking
Topic: Can station bridge also support WDS?
Replies: 6
Views: 1378

Re: Can station bridge also support WDS?

You can manage RouterBoards on L2 as well, if you are in the same L2 segment, simply click on its MAC address in winbox, and you will connect using MAC, so no L3 is really needed for management :) Thank you for that advice! I did not see the MAC address; I didn't realize it was an option I could cl...
by fgoldstein
Sun Oct 07, 2012 8:18 am
Forum: Wireless Networking
Topic: Can station bridge also support WDS?
Replies: 6
Views: 1378

Re: Can station bridge also support WDS?

Can you please clarify what you mean? I tried to set the station-bridge to AP bridge, but that turned off the station bridge function. I've bricked that box a couple of dozen times today ;-) and that reset function doesn't every time, either. Not having a serial port (not that most computers do eith...
by fgoldstein
Sun Oct 07, 2012 1:04 am
Forum: Wireless Networking
Topic: Can station bridge also support WDS?
Replies: 6
Views: 1378

Can station bridge also support WDS?

I'm trying to extend the range of a wireless LAN by using WDS, where the WDS remote node would be a station-bridge feeding Ethernet to a fixed computer. The instructions for setting up WDS say to make the remote an AP bridge, but that's what the master AP uses. The hardware at both ends is an RB951-...
by fgoldstein
Fri Oct 05, 2012 9:25 pm
Forum: General
Topic: RB 951-2n won't reset after attempted Winbox upgrade
Replies: 13
Views: 11675

Re: RB 951-2n won't reset after attempted Winbox upgrade

I did a second Netinstall and a few more reboots and resets, and finally it came up at 192.168.88.1. So now I just have to redo the incantations to make it a station bridge. What I really wanted to do, what started me down this path, was make it simultaneously a station bridge (to put an Ethernet-eq...
by fgoldstein
Fri Oct 05, 2012 4:32 pm
Forum: General
Topic: RB 951-2n won't reset after attempted Winbox upgrade
Replies: 13
Views: 11675

Re: RB 951-2n won't reset after attempted Winbox upgrade

Netinstall is a good idea. I tried it. I connected the spooged 951 to an Ethernet port on the working one (the AP, now at 5.20). I ran Netinstall on a laptop hard-wired to the same working 951 and gave it the client bridge's desired IP address. When I put the Ethernet cable into jack 2 (not 1) of th...
by fgoldstein
Fri Oct 05, 2012 7:29 am
Forum: General
Topic: RB 951-2n won't reset after attempted Winbox upgrade
Replies: 13
Views: 11675

RB 951-2n won't reset after attempted Winbox upgrade

I have an RB 951-2n which was set up as a station bridge, client to another one used as an AP. The AP was upgraded to 5.20 successfully via Winbox. So I took the station side box to the vicinity of the AP for a good connection and then Winbox would connect to it. I dragged the 5.20 files into the bo...
by fgoldstein
Fri Jul 27, 2012 5:34 am
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

fgoldstein, could you please tell us what WPA2 configuration (security-profile settings) you had on that virtual AP where the client couldn't connect? My security profile for this virtual AP (wlan2), profile2, is name="profile2" mode=dynamic-keys authentication-types=wpa-psk,wpa2-psk unicast-cipher...
by fgoldstein
Wed Jul 25, 2012 6:41 pm
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

It's going all gaga again! Or as my son asked me when his laptop lost its connection, why am I buying cheap Latvian gear? I told him that it's because of the good support. BTW I'm still on 5.16, which it came with. First off, some background. The initial problem for which I started this thread was c...
by fgoldstein
Fri Jul 06, 2012 9:49 pm
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

I raised the group key lifetime to 90 minutes, so there are fewer rekeying incidents. So far the failures that have happened have been in the Cisco cable modem itself -- now *that* is giong to need replacement. Of course this has only been a few days; for a while, I was back in WEP mode.
by fgoldstein
Fri Jul 06, 2012 8:47 pm
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

I think it's a software bug, so testing one should suffice. From the logs, it appears in my case that the problem is the default 5 minute group key lifetime in WPA. (The unit being disconnected is pre-WPA2, but has WPA "1" with AES.) The re-keying sometimes fails. I don't know the details of the pro...
by fgoldstein
Sat Jun 30, 2012 2:18 am
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

The error in the log was "disconnected, group key exchange timeout". The default "group key update" value was set at 00:05:00 (5 minutes/300 seconds). I had no idea what that meant and if it was the same thing, so I googled around and found some exchanges on the topic. This is the time before the gr...
by fgoldstein
Wed Jun 27, 2012 4:31 pm
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

There have been no obvious failures of the WEP connections. However, the Buffalo was the only static one on a desktop; laptop and smartphone connections come and go, and we don't use the Wii often enough to know. I've moved the Buffalo over to WEP and it has stayed up ovenight, not that it's a long ...
by fgoldstein
Wed Jun 27, 2012 12:05 am
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

It failed again maybe an hour or two after the last reset. I wasn't there to catch the log when it had to be reset. But I'm going to move the Buffalo in question from WPA mode to WEP mode to see if that helps. I still wonder if there's something about my WPA settings that is causing the problem. The...
by fgoldstein
Tue Jun 26, 2012 7:44 pm
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Re: Wireless connection droppping on RB951-2n

It just happened again. I ran home and copied the log to Notepad before rebooting. The device in question has a MAC ending in :CA. 92 Jun/26/2012 11:55:04 memory wireless, info 00:16:01:70:63:CA@wlan2: disconnected, group key exchange timeout There are other messages in the log but don't mention tha...
by fgoldstein
Mon Jun 25, 2012 4:44 pm
Forum: General
Topic: Wireless connection droppping on RB951-2n
Replies: 24
Views: 7054

Wireless connection droppping on RB951-2n

I've had a new 951-2n set up as an access point/router for a week now but it has not been stable. In particular, it drops wireless connections. I notice somebody else mentioning wireless drops in the 5.18 thread, and this hasn't been mentioned in the 5.17 or 5.18 release notes. The 951-2n came new w...
by fgoldstein
Wed Jun 20, 2012 7:02 pm
Forum: Beginner Basics
Topic: Confugure simple client-side bridge using RB951-2n?
Replies: 3
Views: 2441

Re: Confugure simple client-side bridge using RB951-2n?

Yes, thanks. I think I am mostly there. It is now working as a bridge. The one thing that I seem to have screwed up is the IP address. Last time I tried to change it away from .88.1, things got all confused, as the computer I was connected to lost its own IP address (the Ethernet cord was providing ...
by fgoldstein
Tue Jun 19, 2012 6:51 pm
Forum: Beginner Basics
Topic: Confugure simple client-side bridge using RB951-2n?
Replies: 3
Views: 2441

Confugure simple client-side bridge using RB951-2n?

I've just acquired two RB951-2ns and am starting to get my hands dirty with RouterOS. The first one was set up to replace a Linksys AP. This works well enough -- I would not recommend it to an ordinary consumer, since there's no consumer-type documentation, but I understand networking well enough my...
by fgoldstein
Tue Jun 19, 2012 6:28 pm
Forum: Wireless Networking
Topic: [Req - SOFTWARE] Create Coverage Map of Wireless Netwrok
Replies: 9
Views: 2144

Re: [Req - SOFTWARE] Create Coverage Map of Wireless Netwrok

One thing to note about MyWifiCoverage and RadioMobile -- they're basically the same thing underneath. RadioMobile is the free product. It's incredibly powerful, but takes some time to learn and to get the settings right for your application. MyWifiCoverage is the new pay-to-use version by the same ...
by fgoldstein
Tue Aug 24, 2010 1:38 am
Forum: RouterBOARD hardware
Topic: R52Hn in 5825-5850 MHz?
Replies: 3
Views: 1247

R52Hn in 5825-5850 MHz?

I'd just like to verify some details about the R52Hn. Certain vendors (no names ;-) ) do not support the upper 25 MHz of the US 5.8 GHz band (FCC Part 15.247). This can make it harder to find clean frequencies. Does the R52Hn go up there? The brochure doesn't say, though another MT card did say that...