I have problem with two rb750GL both of them after upgrade to 6.40.5 are working fine for some time and then just freeze. I see them from other MT in the same bridge but cant log in , then go reboot and work fine for another 12 to 24 hours. Routerboard bios flashed to 3.41 , now I added WD to nearest device but i think that there is something wrong in this situation. Before there was no problem with any of them. Any ideas?

config is really simple one of them is just bridge other one has bridge and 3 vlan's thats all.

Hello,
I have hAP ac router, after update from 6.38.x to 6.40.5 the signal of 5GHz not stable, I can connect only with 2GHz channel. When I can see the 5GHz signal it no possible connect to Wi-Fi. I didnt do any changes in setups after update, update was automaticaly from "Quick Set" page.
May be I have to check some setups to restore functionality?

I have upgraded to 6.40.5 on (2) DynaDisk 5 and RB2011 also upgraded the firmware. After the upgrade all the RB's where cutting out. Using btest to any upgraded unit shows good speed, then no speed for several seconds intermittently. After downgrading all the speed test was constantly good. It looks like the firmware upgrade was the issue.

Hi,
I just upgrade my client router hap-lite2 and suddenly the connection lost. oh my god, their office is around 58.4KM away.
i wasn't give up, tried to mac telnet and it do the trick, i was able to connect to the terminal.

then i could reach the terminal, ports was running (flag R), but the ip was not working. after some check, port name and physical port wasn't match with the previous condition. why this could be happened?
upgraded from 6.29 to 6.40.5

My similar experience many years ago teached me not to rename the ports. I use comments to mark the ports by their meaning instead and keep the original port names.

My similar experience many years ago teached me not to rename the ports. I use comments to mark the ports by their meaning instead and keep the original port names.

Hi jarda,
Yes, agree. the interface name was remains default. ether1, ether2, ether3, ether4 and only commented on ether2 and ether4.

need abit of CRS326 help.
...

Could you please use the proper forum sections and not pollute a firmware announcement topic?

Ahhhh the first victim of the new firmware version notation keeping in touch with the RouterOS version notation.

"Also you can try to power off router, press and hold reset button. power router on and release the button."
tried, no luck

I do not have any serial cable. What should i do? (hAP AC was bought a week ago)
Tried patch cord + netinstall... The device reboots and invisible in Netinstall app

try putting a switch between your laptop nic and the mikrotik device, sometimes netinstall does not work directly to the nic, happened to me last week

connect the RouterBOARD device to power with the RESET button pushed, until you see the device in the Netinstall program interface. Then release the RESET button (around 15 seconds since power on).

Updated rb952ui-5ac2nd and https on wifi connection stopped working, even winbox is kicked-out after 2 seconds. But only on wifi (using capsman).
When connected by ether ports, it works just fine, both https and winbox, from wan side is everything accesible also.

Hello, I have the typical set of rules of drop ssh stages that is shown in the Mikrotik wiki, but I notice that in this version 6.40.5 does not detect when the connection is new, therefore it does not work. I had to make the new connection markup from the "mangle" table because in filter I stop working. Is it just my problem? Is it some new feature that I do not know?

Thank you.

Looks like there is no life in MT kingdom after 6.40.5 and 6.41rc52 - see no changes on download page for days. Hope to see another 6.40.x current before we see "6.41-Revolution-is-here" release!

increase in cpu usage to 16% from 1% on RB3011UiAS

increase in cpu usage to 16% from 1% on RB3011UiAS

I've also noticed a slight cpu (not as much as yours) increase on CCR1036 after upgrading to 6.40.5 from 6.38.x.

CRS317-1G-16S+ switch menu shows no ports is this normal?

6.35.4-------->6.40.5 with ease.

Hi all

I have the exact same problem after upgrading my RB951G-HnD to 6.40.5. It beeps every 6 seconds. It doesn't get picked up in Netinstall. Also, Windows cannot keep a LAN connection to the RB, it keeps on Identifying and then cable unplugged (loop). This occurs on all ports. Is there any solution to get my RB working again. I have done a reset as well with no success.

Any advise will be appreciated.

Regards
Marnus

On RB433AH updated from old 6.39.2. It works good but something may be wrong with DHCP6Client.
6.39.2 got address and prefix from my ISP in few seconds.
6.40.5 got nothing and searching forever.
I downgrade to 6.39.3 and problem still the same.
So finaly downgrade back to 6.39.2 and it works fine.

So IPV6 implementation of my ISP may be buggy. Or something wrong with new 6.39.3 to 6.40.5 release.
Can i solve this when i reset RB to default and setup it again from backup ?

So I upgrade it to 6.40.5 and reset it to default. Then I setup it from backup and it works fine. So best way is BACKUP -> UPGRADE -> RESET TO DEFAULT -> SETUP IT FROM BACKUP.

I had problems with several Samsung Galaxy S7 Edge devices running Android 7.0 with wAP AC and central CAPSMAN controller running 6.40.5. The smartphones connected, but they had no internet. I updated the wAP AC from 6.40.5 to 6.41rc56. The CAPSMAN controller is still runing at 6.40.5
Now the smartphones can connect and have internet access. So whatever change the latest RC received it would be great if that one could be integrated into the next 6.40.x release.

Last current has a problem about MTU.
Since I run MPLS I had a problem with a client that has VPLS flapping, after a lot of time throubleshooting I run a ping with don't fragment bit and packet size 1526 and despite the MTU and L2MTU of interfaces were 1600 and MPLS MTU 1530 it fragmented, so I raised to 1700 the L2MTU and it worked. Before the update I haven't had this problem on any network with same configuration.

after upgraded to 6.40.5 make increase cpu activity sometime always hit 100% usage
rb750r2
rb750gr2
rb450g
rb850gx2

edit: replace rb750r2 & rb750gr2 to rb750gr3, rb450g to rb850gx2, rb850gx2 to ccr1009-7g with same config currently look fine
i think the old hardware doesnt powerfull enough passing high bandwidth

Updated 2011UiAS-2HnD from 6.40.4 (firmware 3.41) to 6.40.5 - so far no problems.

Upgraded my CHR(Dude Server) to 6.40.5 and now the Dude server lost all SVG icons for devices, the background grid map doesn't show and adding it back I get stuck in 'loading' but the images don't show.

Device discovery completes but the topology does not resolve. 1 hour later, still stuck at 'finishing 100% Complete'.

PPP profile 'on-down' commands are run when connection attempts unsuccessful.

We run a simple script to clear connection tracking entries, so that NAT updates correctly when outbound connectivity for VoIP changes. Primary connection is PPPoE and failover is LTE.

Problem is that PPPoE client, when connection attempt times out, always runs 'on-down' commands, instead of only running them if the state changes.

The script: PPP profile: '/sys script print brief' will show run count incrementing when connect attempt to establish but times out...

------------------
[admin@MikroTik] > /certificate crl print detail
Flags: E - expired, D - dynamic
0 D cert=cert_export_KBV-CHR-CA.crt_0 url="http://192.168.80.251/crl/4.crl" num=0 revoked=0
signature="********"
next-update=dec/09/2018 08:05:30 last-update=dec/09/2017 08:50:44
------------------
Will this happen next year?

version: 6.40.5
architecture-name: x86_64
board-name: CHR

sir, i have problem with user id and password , the login page showing me radius server is not repond

sir, i hae not understand your what is the solution against the complaint login page showing Radius server is not responding against with user manager user id and password which showing already on the screen shot of the login page.

Dear Mikrotik Team

A DoS vulnerability has been released to RouterOS 6.40.5.

https://cve.mitre.org/cgi-bin/cvename.c ... 2017-17538
https://www.exploit-db.com/exploits/43317/

What kind of schedule is correspondence such as update?

Best regards.

Dear Mikrotik Team

A DoS vulnerability has been released to RouterOS 6.40.5.

https://cve.mitre.org/cgi-bin/cvename.c ... 2017-17538
https://www.exploit-db.com/exploits/43317/

What kind of schedule is correspondence such as update?

Best regards.

That is not a vulnerability. Somebody made a ping script that floods the device, and result is that CPU usage rises.
Any task will affect CPU usage. This is normal.
The submitter is some person looking for internet fame.
We will see who we need to contact to de-list fake CVE submissions.

Thanks normis.

Was there any such circumstance in this information ...

For the time being, I will try to keep this situation still.

Best regards.

Hi.

I have a a few MK RB1100 on producction running the hotspot service and after update from 6.36 to 6.40.5 experience issues.

After x time 10/20/30 min, i suppose it depends on the amount of traffic, the portal starts to fail, could be:
Portal doesn´t appear or Login button does nothing, but firewall hotspot rules continues matching packets.
If i change any configuration on the hotspot server , everything start to work fine. Like if the service restarts resolve the issue.
My implementation use external radius server.
The ammount of simultaneous users is between 140 and 800

I have to say model CCR1016-12G woks fine with the same release.

Thanks

Little "/export" issue:
in "ip dhcp-server" section, any setting to "bootp-support" (e.g. set bootp-support=none lan_dhcp) will not be exported

Version 6.41 has been released:
viewtopic.php?f=21&t=128915