Community discussions

MikroTik App
 
User avatar
JohnTRIVOLTA
Member Candidate
Member Candidate
Topic Author
Posts: 247
Joined: Sun Dec 25, 2016 2:05 pm
Location: BG/Sofia

5ghz wireless radio randomly disappear

Sat Dec 12, 2020 11:13 am

Hi guys i have rbm33g with two wireless card one for 2.4ghz /AR9370/ and other/QCA9880/ for 5 ghz . But sometimes 5ghz wireless radio disappear. In winbox all look OK , i disable/enable the interface but that not resolve the problem. Only when i reboot the routerbord the radio is available . This is happen randomly after 2 days, 2 weeks, 5 days, next day ...
I have had this board for more than 2 years, at one time this problem had appeared at the beginning, but it seems that the new versions of ROS have fixed it. Unfortunately, this problem may appear again in 2 months. I have tried all available versions for the board except version 7, but the problem remains. My question is did I put the cards in correctly and shouldn't a jumper fix it?
Image
 
mkx
Forum Guru
Forum Guru
Posts: 5246
Joined: Thu Mar 03, 2016 10:23 pm

Re: 5ghz wireless radio randomly disappear

Sat Dec 12, 2020 10:08 pm

What's frequency setting? Auto or fixed frequency? What is it? I'm sure you're aware of DFS and rekated AP behaviour.
BR,
Metod
 
User avatar
JohnTRIVOLTA
Member Candidate
Member Candidate
Topic Author
Posts: 247
Joined: Sun Dec 25, 2016 2:05 pm
Location: BG/Sofia

Re: 5ghz wireless radio randomly disappear

Sat Dec 12, 2020 10:21 pm

Тhese are the interface settings:
 2  R ;;; -- Wireless Radio 5.0 GHz --
      name="wlan_5GHz" mtu=1500 l2mtu=1600 mac-address=00:00:00:36:59:75 
      arp=enabled interface-type=Atheros AR9888 mode=ap-bridge 
      ssid="123456" frequency=5180 band=5ghz-n/ac 
      channel-width=20/40/80mhz-Ceee secondary-channel="" scan-list=default 
      wireless-protocol=802.11 vlan-mode=no-tag vlan-id=1 wds-mode=disabled 
      wds-default-bridge=none wds-ignore-ssid=no bridge-mode=enabled 
      default-authentication=no default-forwarding=no default-ap-tx-limit=0 
      default-client-tx-limit=0 hide-ssid=no security-profile=12345678 
 
User avatar
ahteran
newbie
Posts: 39
Joined: Sun Nov 09, 2014 5:07 pm

Re: 5ghz wireless radio randomly disappear

Sun Dec 13, 2020 9:56 am

I had a similar issue with RBM11G and R11e-5HacD. Now 6.46.8 installed and no problem
 
User avatar
JohnTRIVOLTA
Member Candidate
Member Candidate
Topic Author
Posts: 247
Joined: Sun Dec 25, 2016 2:05 pm
Location: BG/Sofia

Re: 5ghz wireless radio randomly disappear

Sun Dec 13, 2020 1:14 pm

I had a similar issue with RBM11G and R11e-5HacD. Now 6.46.8 installed and no problem
Thanks. I will test it again with this version !
 
User avatar
JohnTRIVOLTA
Member Candidate
Member Candidate
Topic Author
Posts: 247
Joined: Sun Dec 25, 2016 2:05 pm
Location: BG/Sofia

Re: 5ghz wireless radio randomly disappear

Thu Dec 17, 2020 7:46 am

The issue appear today again , after 4 days !
 
WeWiNet
Member
Member
Posts: 488
Joined: Thu Sep 27, 2018 4:11 pm

Re: 5ghz wireless radio randomly disappear

Thu Dec 17, 2020 6:40 pm

Wifi disappearing can be two things :
- HW problem (in this case don't know what you could do for solving it)
- DFS/ radar detected.
If DFS detected the log will show it (I think it is part of "info" logging. else add "wireless" for lagging).

In the interface tab, while the Wifi i/f being "absent", in the lower right tab part it will say : "radar detection" and it will show "not active"

PS: I exclude the 3rd one, ROS problem as I can not imagine this being SW problem if you use long term ROS version on your board...

Your client is set to auto frequency and channel width setting?
WeWiNet

**
MTCNA
I like a new challenge, I migrate to ROS7... :? or maybe I am just crazy :lol: !!!
 
User avatar
JohnTRIVOLTA
Member Candidate
Member Candidate
Topic Author
Posts: 247
Joined: Sun Dec 25, 2016 2:05 pm
Location: BG/Sofia

Re: 5ghz wireless radio randomly disappear

Thu Dec 17, 2020 11:10 pm

Your client is set to auto frequency and channel width setting?
I use fixed channel - viewtopic.php?f=7&t=170718#p834491
I try last RC ROS with skip DFS channels=all

Who is online

Users browsing this forum: No registered users and 47 guests