We appear to be seeing substantially more robust performance using RC6 on RB133/SR9 900MHz test links in a busy RF area. Throughput has nearly doubled...
Can you post an export of your interface wireless? We have a RB532/SR9 900 MHz AP with RC6 running PtMP with 16 clients. The idea was to improve performance by getting rid of WDS and setting the clients to station pseudobridge. I've tried nearly every configuration tweak I could think of (hw-retires variable, preamble length, data rates, csma disable, interference immunity, non-relevant services disabled, etc) and when the AP pushes an aggregate load of ~ 500-700k most all clients get disassociated and re-associate. When traffic is being pushed we're lucky to have a 30 second uptime for any CPE.
Luckly with pseudobridge, these dissconnects are mostly transparent to end users as the reconnect times are < 1 second, but still not something I would want in production. 2.9.46 was much more stable, but ping times were getting pretty bad with all the WDS connections running.
Anyone having any success with 900 MHz RC6 APs running point-to-multipoint? Any suggestions?