Its not a problem per se,
I experience no functionality loss from this. What I notice is that it takes up to a day for IPV6 info to show up after a FW upgrade. It happened when I first set the router up a few weeks ago, and then today when I flashed to 380.64_2, the info is not there again. But my guess is that it will show up tonight or tomorrow. When IPV6 network config is there, the desktops, laptops, phones and tablets appear to use it as they should.
Not sure if this new or not. I migrated to an RT-AC88 and 380.64 at the same time. I am on comcast with the router behind an Arris TM722G cable modem.
I am using the "Firewall: Drop IPv6 neighbour solicitation broadcasts" feature set to Yes, not sure if that's doing it.
The Arris TM722G Reports:
DHCP Attempts to obtain CM IP Address:
IPv4 Attempt(s) 0
IPv6 Attempt(s) 5
I've never noticed 5 IPV6 Retries before
I access the comcast IPv6 test link:
View attachment 8238
Here is the IPV6 config
View attachment 8239
Again, its not a major problem, I'm curious if others see this, or its normal... or maybe there's a tweak to get IPV6 sooner.
Paul