Just had Vodafone fibre installed along with a TelstraClear labeled Technicolor TG789v3 router. Mostly works fine however get connection errors when attempting to play Mario Kart 8 Online. Nintendo's suggested solution to that particular error code is to place the Wii U into the dmz so i attempted to do so following this (http://help.telecom.co.nz/app/answers/detail/a_id/20201/~/dmz-mode---thomson%2Ftechnicolor-modems) guide. However it appears that these routers have been locked down by VF/TCL and am unable get past step 6.
So i attempted to replace the TG789v3 with a netcomm nf4v i previously had for VDSL, basically deleted the existing WAN interfaces and then created a new IPoE interface with VLAN set to 10. This worked and the issue with Mario Kart was resolved (without putting the Wii U into the DMZ). However after about 30 mins I was disconnected and had to revert back to the TG789.
I'm wondering if there are any settings i may have missed or perhaps there is some authentication at VFs end causing the disconnection (i was under the impression that the authentication was purely done based on the cvid of my ONT however i'm not completly sure).