AC 86U xbox live over wifi stopped

[wmc81]

installed RT-AC86U_384.12_0 and xbox live over wifi stopped working after firmware update coming from
RT-AC86U_384.11_2 well some things worked like teamchat etc but not start games..

but it did work with cabel, changed back to RT-AC86U_384.11_2 and everything works fine again over wifi

 

[Vexira]

installed RT-AC86U_384.12_0 and xbox live over wifi stopped working after firmware update coming from
RT-AC86U_384.11_2 well some things worked like teamchat etc but not start games..

but it did work with cabel, changed back to RT-AC86U_384.11_2 and everything works fine again over wifi

Are you sure that you have full cone nat set in wan, because if it's set so symetric that might be possibly the cause.