after two days working on 6.37 without any load
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on the previous versions I two years have not seen such a.
after two days working on 6.37 without any load
![]()
on the previous versions I two years have not seen such a.
Is wrong on winbox (probably) on on terminal?
Affect ALL routeros version where wireless/channel are present, not only 6.37 or 6.36.3

WARNING !!! EDIT - UPDATE - v38rc worked
There is definitely a problem with the upgrade to 6.37 !!! ((EDIT - Problem appears to be resolved with v6.38rc))
Be prepared to loose about 5 percent of your remote Mikrotik clients when you upgrade from 6.36 with wireless-rep package !I noticed this problem today and posted the problem. Now after upgrading hundreds of remote clients a few days ago, I am starting to get customers calling me saying they are down. After going to some customers to investigate the problem, I discovered the exact same problem after the upgrade to 6.37. Where there is an older wireless package also listed. You can not enable or delete/remove/un-install either wireless package. The ONLY thing you can do is perform a downgrade to an older version of ROS.
ALSO - then after the downgrade - you then need to restore your latest backup -or- reconfigure everything to do with your wlan
North Idaho Tom Jones
EDIT - Update - Good News
Working with a problem Mikrotik that every time lost the wireless interface when upgrading from 6.36 to 6.37 which resulted in two different versions of the wireless package (one was new at 6.37 and the old was 6.20 (where ever the 6.20 came from I have noo idea). Both wireless packages were disabled and the only recovery was to downgrade to 6.36 then restore the last backup configuration.
What worked was upgrading from 6.36 to 6.38rc7
The wireless link came back
However - there was still the older disabled wireless 6.20 package
I did another reboot - when it came back then everything looked good - there was no longer a second older wireless package.
North Idaho Tom Jones
TomjNorthIdaho:
WARNING !!! EDIT - UPDATE - v38rc worked
There is definitely a problem with the upgrade to 6.37 !!! ((EDIT - Problem appears to be resolved with v6.38rc))
Be prepared to loose about 5 percent of your remote Mikrotik clients when you upgrade from 6.36 with wireless-rep package !I noticed this problem today and posted the problem. Now after upgrading hundreds of remote clients a few days ago, I am starting to get customers calling me saying they are down. After going to some customers to investigate the problem, I discovered the exact same problem after the upgrade to 6.37. Where there is an older wireless package also listed. You can not enable or delete/remove/un-install either wireless package. The ONLY thing you can do is perform a downgrade to an older version of ROS.
ALSO - then after the downgrade - you then need to restore your latest backup -or- reconfigure everything to do with your wlan
North Idaho Tom Jones
EDIT - Update - Good News
Working with a problem Mikrotik that every time lost the wireless interface when upgrading from 6.36 to 6.37 which resulted in two different versions of the wireless package (one was new at 6.37 and the old was 6.20 (where ever the 6.20 came from I have noo idea). Both wireless packages were disabled and the only recovery was to downgrade to 6.36 then restore the last backup configuration.What worked was upgrading from 6.36 to 6.38rc7
The wireless link came back
However - there was still the older disabled wireless 6.20 package
I did another reboot - when it came back then everything looked good - there was no longer a second older wireless package.North Idaho Tom Jones
Dynamic queue from hotspot get wrong priority
I tried to set priority 6,7,8, not specified then update user profile, reset hotspot server but priority of dynamic queue still 1

After upgrade CHR 6.36.3 → 6.37 on Hyper-V Router OS don
t work properly. Ethernet dont work. System crashes when any manipulation with Ethernet. Clean image vhdx don`t work too.
I had the same problem
I just had a really strange problem with the upgrade from 6.36 to 6.37
When I did the upgrade (using the Mikrotik check-for-upgrade via winbox), the Mikrotik (RB435G) did the upgrade to 6.37
however in Winbox, there was no Wireless section
In packages there were two wireless packages, one was 6.37 and the other was 6.20 - both were disabled
I could not in-install either package.
I then downgraded back to 6.36 and the Wireless selection in Winbox came back and there was only one wireless package.
I then upgraded to 6.37 again and again I had the exact same problem. Downgrading back to 6.36 again made everything correct again.
I repeated this process two more times and had the exact same problems again.
Sooo I am stuck with a Mikrotik running 6.36 than can not upgrade to 6.37 - really strange.
I am afraid to keep playing with it because this is an ip/audio link to a remote FM radio station (88.3 KWIS FM) we operate.
I am confused on where the 6.20 wireless package keeps coming from every time I upgrade to 6.37
It is not in the files I see prior to upgrade from 6.36 to 6.37In the last few days - I upgraded hundreds of Mikrotiks from 6.36 to 6.37 and only ran into this problem on one Mikrotik this morning
Any ideas ? Anybody else experienced this ?
North Idaho Tom Jones
I had the same problem, unable to remove any old wireless package left in 6.37. I had to downgrade the router, remove the wireless package, then reupdate.
again, after 24 hours
![]()
will have to roll back to 34
Hi,
after upgrade to 6.37 (from 6.36.something) my RB493G is not reachable. Neither winbox or netinstall is able to see it. I tried to make a reset by short-circuiting the on board reset “button” while attaching the power adapter but that doesn’t seem to be working either (the beeps seems to be the same as normal install). I don’t have serial cable to attach to RS232 to try.
Any ideas what might went wrong or what else I could try to re-live my RB again?
Thank you for any help.
Herbert
I also have a lot of wireless issues with 6.37. MacBook and printer HP working worse. Wireless-cm2 was stable. How to downgrade to 6.36? Thanks.
upd: did it.
[quote=“strods”]We just released 6.38rc. Please test if wireless package issues are gone:
http://forum.mikrotik.com/t/v6-38rc-release-candidate-is-released/102037/2]
I upgraded to 6.38rc and have wireless operational again but in packages is V6.19 wireless ??
Something is very wrong with both V6.37 and V6.38 ??
If you see multiple wireless packages after upgrade on your device then the spare one will disappear after next reboot.
If you see multiple wireless packages after upgrade on your device then the spare one will disappear after next reboot.
Did you plan to restore cm2 packet? 6.37 very unstable with Apple devices
strods:
If you see multiple wireless packages after upgrade on your device then the spare one will disappear after next reboot.
Did you plan to restore cm2 packet? 6.37 very unstable with Apple devices
Please tell us more detailed in what kind of setup the Apple devices are unstable?
Please tell us more detailed in what kind of setup the Apple devices are unstable?
With 6.37 It needs more time to connect. When I open the lid of macbook I should wait about 1min. With 6.36 it is much faster. Also my printer by HP, when I connect it to 220V, it power on and shows on display that it connect to WiFi, but ip-address like 169.254…xx (I do not remember exact digits). And after 2-3min it gets normal ip-address. With 6.36 it also much faster. About 10-15 sec.
uldis:
Please tell us more detailed in what kind of setup the Apple devices are unstable?
With 6.37 It needs more time to connect. When I open the lid of macbook I should wait about 1min. With 6.36 it is much faster. Also my printer by HP, when I connect it to 220V, it power on and shows on display that it connect to WiFi, but ip-address like 169.254…xx (I do not remember exact digits). And after 2-3min it gets normal ip-address. With 6.36 it also much faster. About 10-15 sec.
What setup you have on the AP? 2.4ghz or 5ghz? Encryption or not?
Maybe you could send the support output file of the config to support@mikrotik.com so we could try to reproduce this problem?
What setup you have on the AP? 2.4ghz or 5ghz? Encryption or not?
Maybe you could send the support output file of the config to support@mikrotik.com so we could try to reproduce this problem?
Printer use 2.4Ghz, MacBook - 5Ghz. Encryption AES. Sure I can. Wait a moment.
upd: check your mailbox.
Version 6.37.1 has been released:
http://forum.mikrotik.com/t/v6-37-1-current-is-released/102133/1