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estas
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RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue Apr 23, 2019 2:36 pm

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!
 
TimurA
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue Apr 23, 2019 2:46 pm

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
 
estas
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue Apr 23, 2019 4:36 pm

Hello TimurA!

Ohhhhh s...t! Thank you !
 
estas
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Fri Apr 26, 2019 7:41 pm

I cnanged wlan1 MAC address, but this not fix problem. 5Ghz still randomly disappering. Log claen.
 
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pcunite
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Fri Apr 26, 2019 8:46 pm

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.
 
estas
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Sat Apr 27, 2019 9:49 pm

I can change wlan1 MAC via winbox....or not? Explain please.
 
estas
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Mon May 06, 2019 10:41 pm

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!
 
whatever
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue May 07, 2019 9:14 am

This might be related to viewtopic.php?f=7&t=148263 !?
At least it sounds similar.
 
TimurA
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue May 07, 2019 4:04 pm

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
 
mlcuch
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Sat Sep 21, 2019 9:02 pm

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.
 
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normis
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue Sep 24, 2019 9:17 am

What kind of devices are your clients? Are there other APs in nearby frequencies?
 
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Wed Oct 02, 2019 10:01 pm

+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.
 
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Sat Oct 19, 2019 7:40 pm

When will this crap be repaired ??? I reboot the router 2-5 times a month ... Even D-LINK did not behave like that.
 
Zacharias
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Sat Oct 19, 2019 8:34 pm

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...
 
TimurA
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Thu Oct 31, 2019 10:50 am

The interface 5ghz on beta59 will no longer crash. Thanks to the mikrotik team and Reinis for the great work done!
 
manmathan
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Fri Nov 08, 2019 5:37 pm

+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.
 
Pdg
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Thu Nov 28, 2019 7:28 pm

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?
 
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Fri Nov 29, 2019 1:01 pm

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.
 
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Mon Feb 10, 2020 8:21 pm

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)?
 
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Thu Feb 13, 2020 6:11 pm

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.
 
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Fri Feb 14, 2020 11:50 am

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!
 
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qbic
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Mon Aug 31, 2020 1:15 pm

Is this hardware revision related flaw?

I wanted to buy this device but now im hesitant do to so.
What is the latest hw revison of this device?
 
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normis
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Mon Aug 31, 2020 1:58 pm

As mentioned above, there can be two causes, one is when the DFS mechanism is looking for radars, if you use a frequency in the DFS range. Simply setting a different frequency will resolve it.

The other one is also software related, multiple wireless fixes for the ARM platform were recently released. Make sure you upgrade RouterOS.

There is no known hardware issue with RB4011 and 5GHz.
 
tomslv
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Thu Apr 01, 2021 10:34 pm

As mentioned above, there can be two causes, one is when the DFS mechanism is looking for radars, if you use a frequency in the DFS range. Simply setting a different frequency will resolve it.

The other one is also software related, multiple wireless fixes for the ARM platform were recently released. Make sure you upgrade RouterOS.

There is no known hardware issue with RB4011 and 5GHz.
This definitely IS a hardware issue. Despite the fact My device is used less than a month, 1 year from purchase date just passed and most likely no one will do anything regarding failing device.

However, I am sure that everybody else has the same issue with this particular device model and 5GHz interface.
Why? That's why:
1. I managed to sort out 1st problem with the frequencies. Only 5420 GHZ actually works with all devices. Choose anything else from the list and You will have issues like You cannot connect or SSID is simply gone
2. Interface works like a charm with good speeds, even when loaded with everything I could from 3 WiFi devices with TCP transfers above 300 MBit/s both ways for few hours. Even after this test it worked for 2-3 days. But then 5 GHz SSID simply disappears. No logs, nothing. You can enable/disable it, but nothing helps, unless You power off device and power it back on. The it will work 2-3 days, and then same problem again. The problem is the same 4 times in a row so far.
3. And the most important thing. When it happens, if You look under System Resources > PCI, it clearly says, that there is an unknown device made by Atheros
Screenshot 2021-04-01 at 22.09.54.png
CALLING OTHERS: Can You confirm that this issue looks the same on Your devices?

So, Normis and MikroTik in general. Will You still ignore this and continue saying that everything is cool with this device?
I honestly don't know what to do now, as this is the only device in its kind and I need exactly this pack of features, but 5GHz is unusable.
Even if for some magic reason You WOULD replace my faulty device, I don't believe that the new device will not have the same issue.
I definitely doubt on buying another one, which most likely will fail the same way.

I hope MikroTik will confirm this issue and recall these faulty devices for everybody who bought them and replace with working ones. Will You?
You do not have the required permissions to view the files attached to this post.
 
delevic
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue Oct 19, 2021 4:10 pm

The same thing happens to me. Lose wifi 5ghz network. And when it appears most devices are not able to connect to the network. After 2-3 restarts of the device, I was no longer able to connect to the router at all. I couldn't even communicate via winbox via mac address ... This device is a disgrace for Mikrotik. After 2011 which is brutally stable and operational, this is rubbish.
I have already replaced the device once and the same problems remain. Now I will take the money back and leave rb2011 in use.
 
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Tue Oct 19, 2021 9:58 pm

No more likely the rubbish is the person configuring the router.
Personally the RB4011 is a fantastic router. MT wifi for home use is rather weak but works.
I would never buy an integrated router and wifi device regardless as the placement of the router (garage, basement) where the services are, is never an ideal spot for wifi and separate Access points make far more sense.
 
delevic
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Re: RB4011iGS+5HacQ2HnD-IN 5Ghz disappearing

Sun Oct 24, 2021 8:44 pm

No more likely the rubbish is the person configuring the router.
Personally the RB4011 is a fantastic router. MT wifi for home use is rather weak but works.
I would never buy an integrated router and wifi device regardless as the placement of the router (garage, basement) where the services are, is never an ideal spot for wifi and separate Access points make far more sense.
I did not notice that you gave any specific solution other than a subjective statement.

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