I was upgrade my 951ui-2hnd from 6.40 to 6.41 and then i deleted all files in router... Now my 951ui become continually reset... I tried Netinstall but it cant see my router...
How can i fix this?

Hello

great job with the latest firmware work so fast and more reliable .I just wonder to know about bonding .
before i used to uncheck master port on ether1 or 2 to be able to create bonding .
Now i cant do that cos it say ether1 or 2 already on brigde1 .
Can someone tell me how to create bonding easy way on the firmware 6.41.2

thnx

Now i cant do that cos it say ether1 or 2 already on brigde1 .
Can someone tell me how to create bonding easy way on the firmware 6.41.2

Go to Bridge -> Ports, remove ether1 and ether2 from the list, go to Interfaces -> Add new -> Bonding, set ether1 and ether2 as slaves, then maybe make the new bonding interface a member of that bridge from which you've removed ether1 and ether2. Done.

Now i cant do that cos it say ether1 or 2 already on brigde1 .
Can someone tell me how to create bonding easy way on the firmware 6.41.2

Go to Bridge -> Ports, remove ether1 and ether2 from the list, go to Interfaces -> Add new -> Bonding, set ether1 and ether2 as slaves, then maybe make the new bonding interface a member of that bridge from which you've removed ether1 and ether2. Done.

Yes thnx was easy way .also in the end have to add ports with the bond created and brigde ..thnxxx again

I have my 7 milkrotik devices all stick to 6.38.5 and I am really scared in try to upgrade. I see a lot of problems in this thread....
Is it really so dangerous?

Don't update anything if it scares you. Read the release notes that describe version differences. If you think there is a change you would like to have, make your own tests with backup devices before you decide to roll out the new version to your production ones.

Also, when you want to be conservative set the update channel to "bugfix only" and you can update to 6.40.6 which does not
have this new style bridge instead of the existing bridge master-port setup. That should avoid a lot of problems when you
have a complicated configuration with VLAN and switching.

Thank You very much!

We've had several instances of CCR routers losing bridge ports after upgrading from 6.41 to 6.41.2.

We run rancid as a configuration revision management system and reviewed logs after scheduling upgrades at 3am, ports simply missing.

Example:
/interface bridge port
add bridge=bridge-hosting interface=xxx-vlan12
missing after upgrade:

add bridge=bridge-nat interface=sfp11
add bridge=bridge-nat interface=xxx-vlan13
add bridge=bridge-management interface=xxx-vlan11
add bridge=bridge-management interface=sfp10
add bridge=bridge-hosting interface=sfp7

Did you have any of bridge ports disabled?

I upgraded a RouterBoard hEX from 6.41 to 6.41.2 and had bridge ports disappearing too.

ether1 and ether2 were no longer part of any bridges (which was kinda unfortunate as those were my uplink and local-network ports)

No, they were active and working perfectly. This occurred on another CCR where I subsequently connected via mac telnet and simply dumped all bridge ports back again, any that already existed we skipped.

I'll book a maintenance window for next weekend (10th March) and take a supout before and after upgrading.

I initially thought that it may relate to large number of bridge ports but the example above occurred on a router with 3 bridges, each with pairs...

Did you have any of bridge ports disabled?

On my CCR1009 this version is unstable.
After an unpredictable time, the DHCP server stops responding, and routing seems to go amok (routes are there, but it is like connection tracking is not working). A reboot restores functionality for a time (from minutes up to a day).
Downgrading to 6.40.6 "cures" this behavior. I do not remember seeing this on 6.41.1. This could be the beginning of a beautiful friendship with 6.40.6

Hi!
I am having trouble sending AT commands to LTE interface. After entering of ANY AT command like "interface lte at-chat lte1 input="ATI"" I receive: "action timed out - try again, if error continues contact MikroTik support and send a supout file (13)" reply.
My board is hAP (RB951ui-2nD) running 6.41.2. I tried it with USB modems ZTE MF730M and Huawei e3372 with the same result.
From Windows PC I can
Does anybody had same issues?

Hello,
I have routerboard and I configure 1 as WAN and 2,3 Bridge with WAN and I have set bandwidth limit on ethernet port 3, see attached file please

but today I bought rb1100ahx4
there is no option to set bandwidth limit on interface
but there is no option to set bandwidth limit

FR:
plz add ICCID to lte info. needed to identify what SIM is now installed into the LTE kit. physically difficult to take out SIM from LTE kit and insert it back to the routerboard every time when we need to see ICCID.

i upgraded my rb750gr2 to 6.41.2 and i lost internet access
i can ping on the router
but devices connected to it have no internet access

I've sent supout files for a CHR instance before and after upgrading (6.41 to 6.41.2) where bridge ports disappear after upgrading. This problem has occurred on CCR, CHS and 750Gr3 routers, one of which only had 3 bridges with 6 bridge ports...

I'll book a maintenance window for next weekend (10th March) and take a supout before and after upgrading.

I initially thought that it may relate to large number of bridge ports but the example above occurred on a router with 3 bridges, each with pairs...

Hi all.

i`v upgraded 2 routerboards and on both of them i get into troubles with wireless.
RB751U-2HnD and RB751G-2HnD - both of them were on some 6.3x.x versions.

after upgrade to 6.41.2 (and corresponding firmware version) was RB unstable, after reboot and when wireless was enabled routerboard goes into booting loop.
configuration reset is unusable, because in default config is wifi enabled => booting loop.
next step was netinstall - yes, it helped. but after enabling wifi it was in booting loop again
i`v used netinstall again, did some tests and things were fine until i`v enabled wifi. Welcome to booting loop.
on 751U i`v tried 6.42rc37 - and after enabling wifi -> whooo, booting loop.
OK, something went wrong.
netinstall with older version (some 6.39.x) - and after enabling wifi..... voila, booting loop.

I have these RBs on very simple configuration - only one bridge across all ports including wifi - RBs acts only as AP for home usage.
So, now these routerboards is in stable config, but with disabled wireless.

Any idea how to solve this issue?

Save your configuration and do a completely new netinstall.
In the past there have been changes to the wireless and at that time it already was tricky to update past that release,
it would not surprise me when it again causes problems when you still had the wireless package from before that change.

Hi,
after netinstall is configuration clear, so it is not about configuration.

edit: on RB951G-2HnD is all OK and working properly.

guys, please, don`t panic (..and thanks for all the fish)

after a few hours of tests with other pices of routerboards (i have many RBs of many types) i have found, where trouble is located.

and this was: power adapter.

so, i`m very sorry to all the people.

We've had several instances of CCR routers losing bridge ports after upgrading from 6.41 to 6.41.2.

I can also confirm that. CCR lost about half of bridge ports for no apparent reason after upgrading from 6.41 to 6.41.2. I also had to netinstall one hAP-AC with very simple config (simple CAP with all ports bridget + dhcp on bridge) which went into reboot loop after upgrade.

JF.

A not so widely know feature of the "older" routers (this was lost in the recent low-end models that have only 16MB of flash) is the
possibility to divide the flash in two partitions that can be copied over and one can be activated. On a CCR you can copy the existing
firmware+config to the inactive partition, upgrade, reboot and when is not troublefree you can activate the second partition and reboot again to
fall back to the previous situation (without the issue that an upgrade could have modified the configuration).
You probably already know this but I bet not every admin does.

Version 6.41.3 has been released in current channel:
viewtopic.php?f=21&t=131810