Running 4 self managed Cisco Aironet 1240AG Series Access Points.
WAP's have been working for 2 years and all of sudden all 4 units now state:
Packet to client 001b.6317.a954 reached max retries, removing the client.
They are kicking all clients off every 5 minutes so what they tell me.
I increased Max. retries to 128 (max setting)
There is never more than 20 clients connected to one of the WAP's.
If more info is needed feel free to ask.