Found the issue!!!! I had defined the following CAPSMAN Rates within my configs: 0 name="test-rates" basic=12Mbps supported=12Mbps,18Mbps,24Mbps,36Mbps,48Mbps,54Mbps ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7,mcs-8,mcs-9 ht-supported-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-...