Hi Morris97,
I am sorry to hear you are having connection issues, please let me know what console you are on as well as the following information for both you and your friend:
Are you Host or Client:
Upload Speeds (while playing the game):
Download Speeds (While playing the game):
NAT type:
Wired or Wireless connection:
Internet Service Provider (ISP):
Router connected to console:
How many console connected to same router:
Are either of you able to connect to any other players or join random 7DTD games?
Clare