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Dot11Radio0 keeps going down

Jagan1976
Beginner
Beginner

                   Hi guys,

I have deployed AIR AP1142 model access points in various locations and some of them get their Radio0 going down intermittenly and the only way is to do a reload. The log just shows that the radio0 went down.

Any friends out there know what can be the issue?

Cisco IOS Software, C1140 Software (C1140-K9W​7-M), Version 12.4(21a)J​Y, RELEASE SOFTWARE

12 Replies 12

kcnajaf
Rising star
Rising star

Hi,

How many AP's your finding this issue? Are these AP's running over PoE switchs or are they using power adaptor? Could you please paste the exact logs from AP?

Regards

Najaf

Thanks for reply Najaf.

I have about 3 sites which have these frequent issues. They sometime can happen after 4-8 weeks.

They are on POE from 3750 or 3560 switches.

I will post the log once it happens again.

Hi Najaf,

It just happened again to one of my APs.

Logs show nothing but that the interface changed to reset:

Nov  5 07:14:02.221: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset

Nov  5 07:14:03.220: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio0, changed state to down

Interface status:

Interface                      IP-Address      OK? Method    Status                Protocol

Dot11Radio0               unassigned      YES NVRAM    reset                 down

Dot11Radio0.100         unassigned      YES unset       reset                 down

Dot11Radio0.200         unassigned      YES unset       reset                 down

Hi,

Just verify if this is happening with AP's connected to both 3750 as well as 3560? Also check how much power is drawned by the AP by using "show power inline" command on the switch. How many AP's are showing this symptoms?

Regards

Najaf

Leo Laohoo
VIP Community Legend VIP Community Legend
VIP Community Legend

"reset"?  Hmmm ... Can you post the complete output to the command "sh version" please?