Had the Issue that i only saw 3-5 servers max. in the ingame server browser. There are some solutions out there, that did not work for me https://offworldindustries.zendesk.com/hc/en-us/articles/234684847-No-servers-in-server-browser (though deleting the personal app data increased my fps) A friend of mine encountered the same problem once he was connected to a new router, so the problem might be there for some people. what brought me a solution was to forward some ports in my router, as well as in windows. Not sure which one did the trick but i opened the following ones: (first 4 rec. by Steam) https://support.steampowered.com/kb_article.php?ref=8571-GLVN-8711&l=german TCP: 27015-27030 UDP: 27000-27015 UDP:27015-27030 UDP 27031 - 27036 UDP: 4380 UDP: 7777 UDP: 7787 Change it in your Router, as well as in WIndows (under firewall, advanced settings, incoming rules). Steam recommends some more. Now i see all the servers. if sometimes the problem occures again, a router restart solves it.