The AP from remote branches it’s getting stuck in config or fault mode

Publication Date:  2018-02-09 Views:  1 Downloads:  0
Issue Description
The AP from remote branches it’s getting stuck in config or fault mode.
Handling Process

Suspect it is network issue and the packets are dropped.

Ping AP from AC with 1450 bytes, we find no packets dropped.



Ping AP from AC with 1500 bytes, there are some packets dropped.


Root Cause

It is MTU issue, one of the devices between AC and AP dropped the packets with 1500 size. After we changed the interface MTU from 1450 to 1500, it is working fine.

Solution

When the ping from AC to AP with 1500 size is successful the issue is resolved

END