Looks more like a problem with interference...
If you are bridging the traffic even on rap, it will bridge the traffic locally, it will not go to the controller...
Now the throughput of a RAP 93 is 10mbs... i m not sure if its a global throughput or it just for traffic going to the controller....
And like i said you are making unecesary ipsec...
Actually got a deployment like this on a client... but its not 42 APS its like, like 22... i got them on campus bridge mode, but they are APS 105s... and everything is working just fine...
Also there is a bug related to ap 93s on RAP mode
Symptom: An AP-105 crashed while decrypting an IPsec packet. Internal code changes fixed this
issue in ArubaOS 6.1.3.8.
Scenario: When an encrypted IPsec packet was received and processed by an AP for decryption,
the packet data was fragmented (not IP fragmentation), and stored in more than one packet
descriptor, as the OS allocated less space for the packets. This issue was observed in the AP-105,
AP-93
I bealive the main issue could be interference or noise but i need those outputs :)
Cheers
Carlos