I just wanted to jump in real fast to see if you saw olavrb's reply and to see if you still needed some help on this or if you were able to get it sorted out. If you are still needing some help, just let us know and we'll be happy to continue helping.
I ended up resetting and reinstalling the routers and that seems to have worked. I am a little concerned and frustrated that this happened though - same thing happened with my nest protects recently, and it doesn’t appear to be something Google can explain. I sure hope it doesn’t happen again as it is a big pain to fix!
I'm happy to hear it worked out and is showing for you again. I understand why you're a bit worried about it happening again too. The issue isn't really a common thing, but hopefully that's the last time you see it, either way.
Since we have a resolution on this, I'll go ahead and close up the thread. If you need anything else in the future, please feel free to open an new discussion.