Apologies for the lack of detail here: android phone, connects to wifi, passed captive portal, and now Mac authenticating via Mac caching. Suddenly stops working, apparently. Error message on browser on phone is DNS probe no response'. OK bearing in mind it is in the failed stat at present.
Firstly the device associates OK
Secondly the device gets a dhcp address OK
Thirdly I see DNS traffic passing from and to the device in the datapath session table
Fourthly when associated with our £30 netgear it works fine ( note no drops on the session table above)
So signal is OK, it can exchange IP and I have 630 other devices working ok. Nothing funky installed on the device and its not rooted
Anyone have this? This is really bugging me.