Community discussions

Search found 12 matches

by jbird
Mon Aug 13, 2018 9:59 pm
Forum: General
Topic: Bridges getting deleted
Replies: 1
Views: 90

Bridges getting deleted

I've had several routers on which the bridges have gotten deleted somehow. Each time, the router had a bridge with Ethernet and WLAN ports on it. Users would report loss of connectivity, and when I logged into the router, the bridge was gone. The ports showed to be configured for a nonexistent bridg...
by jbird
Thu Aug 02, 2018 9:29 pm
Forum: Wireless Networking
Topic: Wireless KeepAlive Frames ? and/or super high "last activity" on clients
Replies: 5
Views: 1930

Re: Wireless KeepAlive Frames ? and/or super high "last activity" on clients

I've been using KeepAlive frames to eliminate the "ghosts" for several months now, and haven't noticed any problems as a result of it.
by jbird
Thu Aug 02, 2018 9:25 pm
Forum: Announcements
Topic: Winbox vulnerability: please upgrade
Replies: 108
Views: 11054

Re: Winbox vulnerability: please upgrade

Hi Normis,

what you wrote above may look for someone that 6.40.8 (bugfix) is not secure too. I would like you mention that this bugfix release is secure too (blog needs correction too but it mention that 6.40.8 is OK at least).
So, is 6.40.8 secured against this vulnerability or is it not?
by jbird
Wed Dec 13, 2017 7:36 am
Forum: Wireless Networking
Topic: Signal strength fluctuating with NV2: 900 Mhz, 20 Mhz. channel width
Replies: 5
Views: 402

Re: Signal strength fluctuating with NV2: 900 Mhz, 20 Mhz. channel width

If you experience an interference issue with nv2 every few minutes, then I suspect you would be experiencing interference issues with 802.11 also. Things I would consider: - Run a frequency usage for several minutes - Are there other APs near-by ( any band ). - On every device, interface - Reset ma...
by jbird
Wed Sep 27, 2017 6:23 pm
Forum: General
Topic: Sierra Wireless MC7750 on Verizon Wireless
Replies: 9
Views: 999

Re: Sierra Wireless MC7750 on Verizon Wireless

I tried the Sierra Wireless MC7750 on RouterOS 6.40.3 and 6.41rc32. It works on both of these RouterOS versions, but it connects at a slower rate than the Quectel EC21-V. RouterOS shows a connect speed of 3100000 with the Sierra Wireless, and 150000000 for the Quectel. I ran speed tests at testmy.ne...
by jbird
Mon Sep 25, 2017 10:50 pm
Forum: Wireless Networking
Topic: Signal strength fluctuating with NV2: 900 Mhz, 20 Mhz. channel width
Replies: 5
Views: 402

Signal strength fluctuating with NV2: 900 Mhz, 20 Mhz. channel width

On some of our 900 MHz. point-to multipoint links, the signal strength and SNR intermittently become poor when using NV2. We're using Ubiquiti XR9 radios. The problem usually lasts a minute or so, then goes away for a few minutes, then returns for a minute or so. If we use 802.11 on these same links...
by jbird
Mon Sep 25, 2017 10:18 pm
Forum: Wireless Networking
Topic: Wireless KeepAlive Frames ? and/or super high "last activity" on clients
Replies: 5
Views: 1930

Re: Wireless KeepAlive Frames ? and/or super high "last activity" on clients

I'm having this same problem on some of our radios with virtual APs. It seems that Having KeepAlive frames is disabled by default when I create virtual APs. This problem only happens on some of our virtual APs that have KeepAlive frames disabled. I've discovered this happening on different RouterOS ...
by jbird
Sat Sep 23, 2017 12:38 am
Forum: General
Topic: Sierra Wireless MC7750 on Verizon Wireless
Replies: 9
Views: 999

Re: Sierra Wireless MC7750 on Verizon Wireless

Thank you. I'll give it a try on 6.41RC. I'm pretty sure I was in DIP mode before, but that's also worth another look.
by jbird
Fri Sep 22, 2017 5:43 pm
Forum: General
Topic: Sierra Wireless MC7750 on Verizon Wireless
Replies: 9
Views: 999

Re: Sierra Wireless MC7750 on Verizon Wireless

We never got it to work. I contacted MikroTik support via e-mail and sent them a supout, and they replied back and said that this looks like a compatibility issue with the modem's firmware. I'm testing a couple of different modems now - a Quectel EC25-V and an EC21-V. So far, the EC25-V isn't workin...
by jbird
Tue Jun 27, 2017 11:38 pm
Forum: General
Topic: Sierra Wireless MC7750 on Verizon Wireless
Replies: 9
Views: 999

Re: Sierra Wireless MC7750 on Verizon Wireless

I upgraded the MC card firmware version and tried again. MikroTik recommended firmware 3.5.23.2 for the MC7700, but the newest firmware that I could find for the MC7750 was 3.5.10.13, so I upgraded to 3.5.10.13. It still doesn't show up as an LTE device. I haven't figured out how to determine whethe...
by jbird
Sat Jun 24, 2017 12:55 am
Forum: General
Topic: Sierra Wireless MC7750 on Verizon Wireless
Replies: 9
Views: 999

Sierra Wireless MC7750 on Verizon Wireless

I am trying to set up a Sierra Wireless MC7750 on a RouterBoard RB912 to connect to Verizon Wireless 4G LTE in the United States. It doesn't work via the LTE interface in RouterOS, but I'm able to intermittently use it with a PPP client. When it works, my ppp-out1 interface status shows a local addr...
by jbird
Sat Feb 11, 2017 12:09 am
Forum: Wireless Networking
Topic: Bridge port received packet with own address as source, probably loop
Replies: 13
Views: 16580

Bridge port received packet with own address as source, probably loop

We're having a problem on the LAN at one of our sites in which we're getting an error that says "WLAN1: bridge port received packet with own address as source address . . . probably loop." The router that is logging the error is the first wireless client in the chain of hops, so it's the closest one...