i picked up a vr600 to replace my rubbish sky hub with sky fibre 

its all set up fine and runs perfect and ipv6 enabled  with the one issue which is extremely annoying , 

my xbox one will not connect to xbox live . my set up is as follows and this is where it gets interesting 

5ghz wifi - various devices all connected fine 

ethernet port 1  ...tp link powerline adapter leading to 2 adapters for kids xbox they have one each 

ethernet port 2 .. hardwired right into my xbox 

if i turn my xbox on then it just will not connect to xbox live at all either wired or wireless 

if i turn the lads xbox x2 on then they both connect and work fine 

i have also took my xbox to their powerline adapter and it also works fine . 

this tells me that either there is a problem with the ethernet ports and xbox live as other hardwired devices do work , i got it to work once but then the next day it didnt ,do you think i need to make the my xbox static ip and put in port forwarding ?  i really dont know tbh and dont want to mess to much 

hope you can help thanks