Connection loss AP to all CPE every 10-30 min

sscheen · April 25, 2021, 11:37am

Hello.
I have an old setup which have been working without complaint from the users for many years.
Now i see some strange behavior and i dont know how long it has been this way.
Every 10-30 min i loose connection to all my CPE for a short time. This is making problems for a user who is gaming.
The setup is old, and i have a plan of upgrading in the future, but i want to see if I can fix this problem.

Is it safe to upgrade the Router OS from 6.24 to 6.47.9 on both AP and CPE without problems?
Any other idea of what can be the problem?

biomesh · April 25, 2021, 12:02pm

Hard to tell without more info. Logs from devices involved, config exports, and a descriptive layout with device hardware models would be a good start.

sscheen · April 25, 2021, 12:41pm

Hello.
Thanks for reply.

I haver attached the config and there is no log. It does not count on the connection timer.
The AP is a RB912UAG and the CPE is a mix between SXT and RB911G. I use 5Ghz.

The layout is quite simple. Its a router in front of the AP with VLAN to each CPE user.
I use NV2 as wireless protocol.
CPE.txt (2.13 KB)
AP.txt (5.34 KB)

sscheen · April 27, 2021, 1:28pm

I have now upgraded software and firmware on both AP and CPEs to 6.47.9
I still have the 2-4 sec connection loss periodically.
But it does not show i logs.

Please, anybody have any idea?

rextended · April 28, 2021, 1:52pm

Paste this on all device, CPE first

/interface wireless security-profiles
set [find] disable-pmkid=yes eap-methods=passthrough supplicant-identity=MikroTik
/interface wireless
set [ find ] adaptive-noise-immunity=none ht-guard-interval=any wps-mode=disabled

After that, set the ap frequency to 5760

AmirFarro · May 3, 2021, 11:11am

I have now upgraded software and firmware on both AP and CPEs to 6.47.9
I still have the 2-4 sec connection loss periodically.
But it does not show i logs.

Please, anybody have any idea?

Paste this on all device, CPE first
/interface wireless security-profiles
set [find] disable-pmkid=yes eap-methods=passthrough supplicant-identity=MikroTik
/interface wireless
set [ find ] adaptive-noise-immunity=none ht-guard-interval=any wps-mode=disabled
After that, set the ap frequency to 5760

I have same problem, does anyone verify that this method worked or not? I don't have permission to change devices settings, I should ask ISP to change these settings.

AmirFarro · May 3, 2021, 1:33pm

I have now upgraded software and firmware on both AP and CPEs to 6.47.9
I still have the 2-4 sec connection loss periodically.
But it does not show i logs.

Please, anybody have any idea?

Paste this on all device, CPE first
/interface wireless security-profiles
set [find] disable-pmkid=yes eap-methods=passthrough supplicant-identity=MikroTik
/interface wireless
set [ find ] adaptive-noise-immunity=none ht-guard-interval=any wps-mode=disabled
After that, set the ap frequency to 5760

Unfortunately it didn't fix my problem, only solution worked that far was by connecting PTP (Disabling other clients except me), Do you get any idea from that?

AmirFarro · May 6, 2021, 1:42pm

Bump!

AmirFarro · July 24, 2021, 12:12pm

I have now upgraded software and firmware on both AP and CPEs to 6.47.9
I still have the 2-4 sec connection loss periodically.
But it does not show i logs.

Please, anybody have any idea?

Paste this on all device, CPE first
/interface wireless security-profiles
set [find] disable-pmkid=yes eap-methods=passthrough supplicant-identity=MikroTik
/interface wireless
set [ find ] adaptive-noise-immunity=none ht-guard-interval=any wps-mode=disabled
After that, set the ap frequency to 5760

Sir can I have direct contact with you?

AmirFarro · July 12, 2022, 8:15am

Check this out.
http://forum.mikrotik.com/t/short-but-periodic-packet-loss-on-2xsxtsq-ac-link/149367/12

sscheen · July 12, 2022, 8:24am

Thanks! I will test this