First: Sorry to maybe look a bit rude by just posting a link. But having to type the same stuff over and over takes too much time so linking to a place where it's written once is a lot easier ;)

If you got linked to this page it means we want you to test connecting to a server through Steam's own server browser instead of the in game browser and tell us if that makes any difference.

To do so please do the following:

1. Close 7 Days To Die
2. Open the Steam client
3. In the menu go to View -> Servers
4. In the new window go to a tab to find the server you got problems with (easiest is probably Favorites or History)
5. Optionally enable filters (bottom of the window)
6. Select the server and click connect

The game should start now and automatically connect to the selected server.

After that please report in the thread you came from if that helped for your problem or not.