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RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Tue Apr 23, 2019 2:36 pm
by estas
Hello,

I have RB4011iGS+5HacQ2HnD-IN router.
The problem is my 5Ghz SSID randomly disappears.Log is clean.
I try use fixed 5180 Channel width 20/40MHz Ce, but this not fix problem.
I try use ROS 6.43.14 (Long-term), 6.44.2 (Stable), 6.45beta34 (Testing) - not matter.

Secondary problem - ethernet ports is randomly flapping: link donw/link up.
Fix - dissable auto neogation and manualy choose port speed, but is no good idea.

Please help!

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Tue Apr 23, 2019 2:46 pm
by TimurA
Hello,

I have RB4011iGS+5HacQ2HnD-IN router.
The problem is my 5Ghz SSID randomly disappears.Log is clean.
I try use fixed 5180 Channel width 20/40MHz Ce, but this not fix problem.
I try use ROS 6.43.14 (Long-term), 6.44.2 (Stable), 6.45beta34 (Testing) - not matter.

Secondary problem - ethernet ports is randomly flapping: link donw/link up.
Fix - dissable auto neogation and manualy choose port speed, but is no good idea.

Please help!
Hello Estas, is software bug of firmware. That is, the initialization of MAC addresses on interfaces..

viewtopic.php?f=3&p=727791&sid=d249a516 ... 14#p727791

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Tue Apr 23, 2019 4:36 pm
by estas
Hello TimurA!

Ohhhhh s...t! Thank you !

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Fri Apr 26, 2019 7:41 pm
by estas
I cnanged wlan1 MAC address, but this not fix problem. 5Ghz still randomly disappering. Log claen.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Fri Apr 26, 2019 8:46 pm
by pcunite
I changed wlan1's MAC address, but this doesn't' fix the problem. 5Ghz still randomly disappearing. Log is clean.

You can't change it on your own, there is an internal problem. This is just a sign.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Sat Apr 27, 2019 9:49 pm
by estas
I can change wlan1 MAC via winbox....or not? Explain please.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Mon May 06, 2019 10:41 pm
by estas
Hi mikrotik

Whats news about rb4011 5ghz wifi problem?
Your support not answered about my problem.
Its hardware problem?
I should change you hardware?
Tell the truth!

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Tue May 07, 2019 9:14 am
by whatever
This might be related to viewtopic.php?f=7&t=148263 !?
At least it sounds similar.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Tue May 07, 2019 4:04 pm
by TimurA
This might be related to viewtopic.php?f=7&t=148263 !?
At least it sounds similar.
No, 5ghz was originally bad for RB4011. On our device, everything is sad and bad. Regardless with capsman or without.

viewtopic.php?f=3&t=142298

viewtopic.php?f=7&t=145834

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Sat Sep 21, 2019 9:02 pm
by mlcuch
I started to have this issue:
I have RB4011iGS+5HacQ2HnD and cAP ac connected to it. Each on one floor. Both serving 2 and 5 GHz WiFi.
On my RB4011iGS+5HacQ2HnD the 5GHz got stuck in "initializing" state with, I believe 6.44.2 version.
I upgraded to 6.45.6.
5GHz started cycling in "detecting radio", "running ap", "initializing", but never got working.
I switched the Channel Width to 20/40/80MHz eeeC.

Now it works.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Tue Sep 24, 2019 9:17 am
by normis
What kind of devices are your clients? Are there other APs in nearby frequencies?

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Wed Oct 02, 2019 10:01 pm
by sizreaper
+1 to the problem.
5G network is working sometime after router reboot. Then wlan1 is in "running ap" mode, but 5G ssid is not available. After restarting wlan1 it stucks in "initializing" mode with no further changes.
I use macbook 2016 only for this network and there are no other 5G networks available around.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Sat Oct 19, 2019 7:40 pm
by Frozer
When will this crap be repaired ??? I reboot the router 2-5 times a month ... Even D-LINK did not behave like that.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Sat Oct 19, 2019 8:34 pm
by Zacharias
When will this crap be repaired ??? I reboot the router 2-5 times a month ... Even D-LINK did not behave like that.
There is no problem with 5Ghz in RB4011, in general...
There is either bad configuration or a hardware problem...

I would netinstall and carefully configure my device again...

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Thu Oct 31, 2019 10:50 am
by TimurA
The interface 5ghz on beta59 will no longer crash. Thanks to the mikrotik team and Reinis for the great work done!

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Fri Nov 08, 2019 5:37 pm
by manmathan
+1

I have the same problem with 5Ghz SSID disappearing after some time / some days.
Come again after reboot - but 5Ghz SSID show much much later than the 2.4 Ghz SSID.

Please fix the problem as soon as possible.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Thu Nov 28, 2019 7:28 pm
by Pdg
Hi, I’m facing same issue, 5ghz Wi-Fi stucks on initializing. Wi-Fi Scan for 5ghz also doesn’t work so it seems that wifi module really doesn’t work.
Is it firmware issue or hw problem?

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Fri Nov 29, 2019 1:01 pm
by Reinis
Hi, I’m facing same issue, 5ghz Wi-Fi stucks on initializing. Wi-Fi Scan for 5ghz also doesn’t work so it seems that wifi module really doesn’t work.
I have the same problem with 5Ghz SSID disappearing after some time / some days.
What version are you using, as mentioned previously, the fix is only in 6.46beta59 or higher

Come again after reboot - but 5Ghz SSID show much much later than the 2.4 Ghz SSID.
It is normal due to regulations and standards, ex. DFS.


If you have 6.46beta59 or higher and still encounter SSID disappearance for 5GHz interface, reboot the device and do the following:
1. Use WiFi analyzer software and take a screenshot of all nearby SSID's within 5GHz range showing each SSID channel number.
2. Generate supout.rif after 5GHz SSID disappeared
3. Enable/Disable or Provision the 5GHz interface
4. Use WiFi analyzer software and take a screenshot of all nearby SSID's within 5GHz range showing each SSID channel number.
5. Generate second supout.rif
6. Visit https://help.mikrotik.com/servicedesk/ and submit a ticket providing both supout.rif files, two screenshots, details about all the clients that were connected to the given AP (any interface) while the 5GHz SSID disappeared.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Mon Feb 10, 2020 8:21 pm
by Selbie
I recently upgraded from LTS 6.44.6 to 6.45.8 and since this issue has appeared 3 times.

1 Time after +/- 1 week
2/3 After 1 day.

I will produce the required files so support could take a look on it, or should I switch to 6.46 (Stable)?

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Thu Feb 13, 2020 6:11 pm
by rburkat
I upgraded same device to 6.45.8 and the 5G disappears after a day. Devices can't even see it.
After reboot it appears and works correctly for hours/days ( variable ) and then disappears.
It worked perfectly from a previous version in stable. But I made all our devices CCRs, caps, run the same version and now experience this issue.

Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Posted: Fri Feb 14, 2020 11:50 am
by WeWiNet
It would be really really really helpful if Wifi interface had a "DFS" statistic to identify if such issue
is DFS related (I expect half of above observations probably be due to that), or other real HW / SW problems!
Something like:
  • Last time DFS signal deteceted
  • Last time DFS scan done
  • Total number of DFS detection since boot up
with above it would be a good starting point to see if "SSID disappearing" is really a Mikrotik issue.
AND it would allow user to understand how good DFS channel can be used or not!