We have a problem with ap-bridge:
ack-timeout is set to dynamic.
We have around 15-30 users/sector. There are specific users - when these users connect the ACK-timeout raises to around 400us - and then the MikroTik sometimes kicks out one previously connected user and doesn't let new user to connect. The users are suffering from continous disconnect/etc.
Previously we had Buffalo WLA-s and didn't have any problem like that, anyone could connect. We had higher ping times an slightly higher packet loss ratios in the peak times when everyone was connected but that's all, so I think that nothign wrong with the "joker" solution - the cabling. In addition the minipci cards are more powerful than the WLA's.