Upgraded my CAPsMAN controller (RB1100AH) to version 6.39rc7. This is controlling one wAP AC, one hAP AC lite, and one hAP AC. Once the upgrade happens, I see my 5Ghz network start to feel slow, and all my devices are unable to associate at the higher MCS. Doing a bit of troubleshooting, I’m unable to get them to work properly. Had to downgrade to 6.37.3 in order to make it work. Here’s the configuration of one of the 5Ghz CAP in 6.39rc7:
1 M BR name="AP02-MasterBR-5Ghz" mac-address=E4:8D:8C:D5:41:6C arp-timeout=auto radio-mac=E4:8D:8C:D5:41:6C master-interface=none
configuration.mode=ap configuration.ssid="Jorbu" configuration.max-sta-count=30 configuration.multicast-helper=default
configuration.tx-chains=0,1,2 configuration.rx-chains=0,1,2 configuration.guard-interval=any
configuration.country=united states configuration.distance=indoors configuration.hw-retries=0
configuration.hw-protection-mode=none security.authentication-types=wpa2-psk security.encryption=aes-ccm
security.group-encryption=aes-ccm security.passphrase="password" l2mtu=1600 datapath.client-to-client-forwarding=yes
datapath.bridge=bridge1 channel.width=20 channel.band=5ghz-a/n/ac channel.extension-channel=Ceee
Here’s the effect of that configuration on the interface details, please note the “current rate set” section:
1 M BR name="AP02-MasterBR-5Ghz" mac-address=E4:8D:8C:D5:41:6C arp-timeout=auto radio-mac=E4:8D:8C:D5:41:6C master-interface=none
configuration.mode=ap configuration.ssid="Jorbu" configuration.max-sta-count=30 configuration.multicast-helper=default
configuration.tx-chains=0,1,2 configuration.rx-chains=0,1,2 configuration.guard-interval=any
configuration.country=united states configuration.distance=indoors configuration.hw-retries=0
configuration.hw-protection-mode=none security.authentication-types=wpa2-psk security.encryption=aes-ccm
security.group-encryption=aes-ccm security.passphrase="password" datapath=JorbuDatapath l2mtu=1600
datapath.client-to-client-forwarding=yes datapath.bridge=bridge1 channel.width=20 channel.band=5ghz-a/n/ac
channel.extension-channel=Ceee rates.vht-basic-mcs="" rates.vht-supported-mcs="" current-state="running-ap"
current-channel="5260/20-Ceee/ac/DP(23dBm)" current-rate-set="OFDM:6-54 BW:1x-2x HT:0-23" current-basic-rate-set="OFDM:6"
After downgrading to 6.37.3, the interface started up the same exact way. I had to recreate the “Configuration” object in order to make it work properly. Here is the config in 6.37.3
1 M BR name="AP02-MasterBR-5Ghz" mtu=1500 l2mtu=1600 mac-address=E4:8D:8C:D5:41:6C arp=enabled arp-timeout=auto
radio-mac=E4:8D:8C:D5:41:6C master-interface=none configuration.mode=ap configuration.ssid="Jorbu"
configuration.tx-chains=0,1,2 configuration.rx-chains=0,1,2 configuration.guard-interval=any
configuration.country=united states configuration.distance=indoors security.authentication-types=wpa2-psk
security.encryption=aes-ccm security.group-encryption=aes-ccm security.passphrase="password"
datapath.client-to-client-forwarding=yes datapath.bridge=bridge1 channel.width=20 channel.band=5ghz-a/n/ac
channel.extension-channel=Ceee
Here’s the interface details, note the “current-rate-set” property (6.37 seems to print out a lot less detail than the newer version):
1 M BR name="AP02-MasterBR-5Ghz" mtu=1500 l2mtu=1600 mac-address=E4:8D:8C:D5:41:6C arp=enabled arp-timeout=auto
radio-mac=E4:8D:8C:D5:41:6C master-interface=none configuration=Configuration_Jorbu5Ghz current-state="running-ap"
current-channel="5260/20-Ceee/ac/DP(23dBm)" current-rate-set="OFDM:6-54 BW:1x-4x HT:0-23 VHTMCS:SS1=0-9,SS2=0-9,SS3=0-9"
current-basic-rate-set="OFDM:6"
Please note, I was also able to reproduce this issue in v6.38; and have not found a way to allow the 5Ghz radios to reach the higher MCS in either 6.38 or 6.39rc7.
Aside from downgrading, has anyone found a workaround for this?
