no errors, so i did some extensive testing.
player is on server 1.
server 2 has been offline since before server 1 was started.
player executes !hop. server 2 is not in the list.
server 2 is started up.
player tries again after 1 minute.
server 2 is in the list (YAY!!)
server 2 is then shut back down.
player waits many minutes.
player executes !hop.
server 2 remains in the list.
server 2 will remain in the list until server 1 is restarted. (not even a map change will reset the list)
hope this helps a bit. looks to me like the plugin checks to see if they are online, but does not check to see if they are offline.... or something to that effect.
edit: i think i figured out the issue with f3 as well... i had to bind it to a non function key and now it works perfectly... i have a keyboard that has the f keys as secondary functions rather than as primary.... the net effect for me was the servers ending up added to favorites rather than accepting the connection... LOL... took me a while to figure out WTF happened... any how, for anyone who cannot use f3 to connect should just bind askconnect_accept to some other key.