PC [HELP] Multiplayer still not working, need help please....

Exastiris

Newcomer
On my co-op home screen:
Join: LAN game or invite code
Host: New Farm or my test farms
then when I go to join through invite, code invite, or joining off their profile the connection fails. When I host, I get all the multiplayer options but when I click on invite friends or invite code, it pulls up the little window that says "Connecting" but it does nothing. I've tried following every multiplayer help that I can find but nothing works so far. I uninstalled and re-installed, still nothing. What is wrong? What can I do?

Screenshots below:
First
Second
Inv code and invite friends forever connecting
 
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