We are having a big problem with our Windows Vista stations. Our wireless network is built on RB600s and R52H cards using PPPoE over WPA-PSK + TKIP. Every type of client works just fine, Windows XP, small Linux CPEs, etc. except for Windows Vista. When the station is running Vista, it associates normally but when we fire up the PPPoE connexion it freezes the computer immediately requiring a reset.
We already tried several wireless chipsets (Ovislink, Ralink, Realtek), many driver versions, Vista pre and post SP1 with the same result. RouterOS from 3.7 to 3.13 either but I don't think it's a MikroTik issue. Also tried WPA2 and AES. Tried to uninstall IPv6, tried to set up IPv4 on the wireless interface and also tried DHCP or disabling IPv4 entirely, nothing worked.
Does anybody has tried to run PPPoE over an encrypted wireless connection with Vista?
Have anybody ran into the same problem?
Any hints? We are completely in the dark with this one...