I'm just back from the customer site troubleshooting a VoWLAN issue - a lot of calls with bad voice quality, packet loss on the SIP call.
Setup: 2x C25, v.9.21.17, APs on both controller, availability and mobility enabled, sync config.
I've solved the issue by enabling "inter WLAN roaming" but I don't unterstand how that is the root cause of the issue.
During the troubleshooting session I've found in the station events of the client home controller messages like this....
08/30/17 12:08:30 EventType[De-registration] MAC[00:1A:E8:60:EE:8C] BSSID[20:B3:99:1C:06:38] Details: VNS[WL3] Cause[Roaming to another WLAN service and permit inter WLAN roaming disabled]
And on the 2nd controller..
08/30/17 12:08:30 EventType[De-registration] MAC[00:1A:E8:60:EE:8C] BSSID[20:B3:99:1B:BE:38] Details: VNS[WL3] Cause[Request from Other Controller]
08/30/17 12:08:30 EventType[Registration] MAC[00:1A:E8:60:EE:8C] AP[11502458235K0000] SSID[WL3] BSSID[20:B3:99:1B:BE:38] Details: Radio
I don't unterstand it... as per the information from the 7.41 KT....
Inter-WLAN roaming means roaming between 2 different WLAN Services having
-same privacy settings
That is the same WLAN service so I don't get.
Or was the behavior changed in the newer software version.