Did some testing:
If I pull the wan port cable from the router and plug it back in ~ 5 minutes later it's fine.
If I pull the wan port cable from the router and plug it back in ~ 30 minutes later it stops updating and never comes back.
If I pull the power from the router and wait a minute and plug it back it in may or may not start updating.
If I pull the power from the router and wait a good long time (20+ minutes)and plug it back in it seems to start updating.

Did not do "extensive" testing just 2 or 3 tests for each due to the time involved in some of the testing.

-Dave