JD> I have both a Archer C7 and C8. Right now the C8 is the only one that JD> will even attempt IPv6. It is running a beta version of firmware that JD> supports SLAAC. Rebooting the router, brings back the IPv6 connection, JD> after it is lost, but that gets tiresome. Both routers were running JD> IPv6, at one time, with no problem. Something changed someplace. :(
I don't know that brand, never heard of them, but something does seem to be amiss if you have to reboot the router to get IPv6 back. Who supplied the router? (you or the ISP)? Have you tried Google to see if this is a known issue? Have you raised it with the ISP's support line?