I have 3 bridges setup in this fasion.
CHS_MLK ---- CHS_ROOT ----CHS_720
CHS_MLK and 720 are both on buildings. CHS_Root is the root bridge and it is mounted within line of sight of the other two bridges. There is less than half a mile between the MLK and ROOT and 720 and ROOT. For the past week, I've been getting deauthentication messages from the root bridge.
Jan 22 10:13:24.930 GMT Interface Dot11Radio0, Station CHS_MLK xxxx.xxxx.xxxx Reassociated KEY_MGMT[NONE]
Jan 22 10:13:24.683 GMT Interface Dot11Radio0, Deauthenticating Station xxxx.xxxx.xxxx Reason: Previous authentication no longer valid
Jan 22 10:13:24.682 GMT Packet to client xxxx.xxxx.xxxx reached max retries, removing the client
It's strange because the connection isn't flapping all the time. Sometimes, it's very stable. The flapping seems to be happening mostly at night. However, it did happen this morning. I have ran the following command on the root bridge.
chsroot#dot11 Dot11Radio 0 carrier busy