Error Code 1 usually means the client cannot reach the VPN server. This is often a network configuration issue, a firewall block, or an incorrect setting.
: Temporarily disable firewalls on both the client and server machines to see if the connection establishes. If it works, re-enable them and create an exception rule for the SoftEther VPN executable and its ports. softether vpn client error code 1 free
Double-check that the (IP address or DDNS) and the Port Number are exactly correct. Error Code 1 usually means the client cannot