The server changes his server ip everytime the router restarts/crashed...

For joining the server with your character again there are 2 ways:

1. Open Steam > View > Servers > Favorites > Add server . Then add the address pixellan.no-ip.org:27015 (You can check by clicking "Find Games at this address')
> Then start ARK and look at Favorite list.

2. Start ARK and look in the unofficial list to the name "PixelWorld!PvP!Diff4![EXP,TAMINGx8/HARVESTx3]" ?/70 players

Everytime the server disappeared try to use this steps!!