3 MN updated without deleting peers.dat, started from 16.7 Win.. seems OK for now.
Over 50min. "last seen".. not very optimistic. Maybe we should rollback to 15.21 and start fighting this fee issue from the scratch..

Thousands of lines of code have been changed...Evan will figure it out.
//updated to v8, will see what happens. It was odd that I was fine on v6, not good on v7 though. v6 I used a new IP...so maybe that goes back to what someone mentioned about the IPs having to drop off the old clients?
Did you leave your local wallet online? when you were on v16.6?
yes..always leave my local wallet on.
Hmmmm this confirm, my feeling...
Because your the only one I saw saying it was ok on 16.6.
Now I've made a test with 16.8.
the one with local wallet offline go unlisted after 1 hour. (MN5)
The other with local wallet online, still listed after 1 hour(MN6). (and also have MN5 listed)...
Maybe something with new protocol don't like to be cut from his mumy (local wallet) ?
Also someone else on dct say that his only MN still listed (after one night) was the one with his local wallet online..