Dear folks, I find the wifi of the conference simply send out public IP from the pool below. inetnum: 137.158.0.0 - 137.158.255.255 netname: UCTNET-B descr: University of Cape Town So I think we need to take care the devices connecting to wifi, especially for some old versioned Android phones. Cheers, -- Roger Shimizu, GMT +2 Cape Town (in DebConf16) PGP/GPG: 4096R/6C6ACD6417B3ACB1