I wouldnt be too fast in doing that.., it happens with me just when i have steam server browser running no game, even in background. Granted something is not quite right in the SB in the game as it seems to clog me up even more on exit of the game.
A typical sequence of events trying to play RO2:
Login to steam, chatting with buddies on TS we gonna protect the motherland from impending invasion. So i get my buddy to join a server coz i know all to well if i refresh the browser im gonna get connection clogging up, in my opinion is due to the steam master servers returning so much information is like a DDoS for my router.
Anyhow, buddy joins a server (he is on bthomehub btw has similar but not half as severe problems as me ) i click the arrow to join in the friends list in steam and game boots.., connecting.. with a blue PAUSED on my screen..., moments pass i connect to the game.
We play a few rounds buddy decides he gonna go break, i play on., or maybe not. I decide to leave server find another one, game disconnects back to the serv browser and no refresh nothing. So i alt-tab to fallback onto steam server browser, only to find no servers are returned [no response].
I now have to wait atleast 3-5 mins to get my connection back, by this i mean http etc traffic as i still stay connected to TS with no apparent effect to ping/response times shown in the bottom corner of TS3 (although additional packet loss, probably due to my router having to do so much work). Same for getting a new refresh in the steam beta client too.
Eventually i get traffic back refresh the steam browser and find a server.., by this time anyone will do. I connect ( PAUSED ) then play for a bit..., a crash or bug i have to restart RO2 and so ad infinitum.
I go through this every time i want to play RO2..., didnt Einstein have something to say about this? i forget.
Anyhow for anyone else trying on this matter id suggest avvin a go at steam, i really cant be bothered any more. Im sure something will be sorted out..., soon hopefully.
Some stuff they suggest in this post, may or may not work for you, worth a go though.
http://forums.tripwireinteractive.com/showpost.php?p=917682&postcount=42
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Totally underwhelmed with this whole debacle
Yup, me too.