6023 Parsec Error Exclusive !exclusive! -

Press Windows Key + R , type control firewall.cpl , and press .

What are running on both your host and client machines? Who is your Internet Service Provider (ISP) ?

May your jumps be true, and your errors random. 6023 parsec error exclusive

The host and client attempt to bypass their respective routers to create a dedicated tunnel.

If you continue to experience issues after trying these steps, it is possible your ISP is restricting UDP traffic, and you may need to use a VPN or contact your ISP to discuss your network settings. Press Windows Key + R , type control firewall

Utilizing a dedicated virtual LAN tool like ZeroTier or Tailscale allows both computers to think they are sitting on the exact same local physical network, bypassing external NAT and ISP blockades entirely.

When both sides have Symmetric NAT, the 6023 exclusive error is guaranteed. Parsec’s servers see two different ports, assume the host is offline, and throw the exclusive flag. May your jumps be true, and your errors random

Often, lingering background processes lock out the ports Parsec needs.

: Double NAT or Carrier-Grade NAT (CGNAT) prevents standard P2P handshakes. Firewall Restrictions