Friends Can't Join
Arrowhead Helldivers 2
Severity: ModerateWhat Does This Error Mean?
Friends can't join Helldivers 2 usually because the lobby is set to Invite Only, or NAT type is too strict. Set your lobby to Friends or Public, and open UDP 3478-3479 and TCP 443 on your router.
Affected Models
- PC (Steam)
- PlayStation 5
Common Causes
- Lobby privacy accidentally set to Invite Only
- NAT type Strict or Moderate blocking peer connections
- One player on a different matchmaking region
- Firewall blocking peer-to-peer game ports
- PSN friend connection failing