Here's an interesting bug. I have reproduced it with two sets of hardware on #3. All three units are running at least 2.8.21

#1_______________#2_____________________#3
|AP| ---5GHz--- |Station - AP| ---2.4GHz-only-G--- |station|

When #2 AP is set to 2.4GHz-only-G AND rate is configured to 6mbps max, #3 will connect and immediately disconnect repeatedly. If #2 AP is set to default, then everything is ok.

Has anyone seen similar?