Error 5038f-MW1 occurs when the player-to-player (P2P) connection between two players cannot be established and a time-out occurs. If there is no issue with the user’s network environment, the issue may be caused by a temporary outage of the network or an issue with the other player’s network environment.
This issue can be resolved by ensuring all players trying to connect have forwarded the correct ports to their router for Monster Hunter: World.
For a handy guide to port-forwarding, please click this link. Please also contact your Internet Service Provider to ensure they are not blocking any of the following ports.
TCP: 80, 443, 1935, 3478-3480
TCP: 53, 80, 3074
UDP: 53, 88, 500, 3074, 3544, 4500
The ports in this Steam guide should be forwarded for Steam users (reposted below).
To log into Steam and download content:
HTTP (TCP port 80) and HTTPS (443)
UDP 27015 through 27030
TCP 27015 through 27030
UDP 27000 to 27015 inclusive (Game client traffic)
UDP 27015 to 27030 inclusive (Typically Matchmaking and HLTV)
UDP 27031 and 27036 (incoming, for In-Home Streaming)
TCP 27036 and 27037 (incoming, for In-Home Streaming)
Dedicated or Listen Servers
TCP 27015 (SRCDS Rcon port)
Steamworks P2P Networking and Steam Voice Chat
UDP 3478 (Outbound)
UDP 4379 (Outbound)
UDP 4380 (Outbound)
If port-forwarding for all users doesn’t resolve the issue, and the time-out occurs only with a specific user and both or one of the users is using WiFi, please have the user and yourself try the following:
- If using WiFi, try changing the router’s wireless channel
- Keep objects that cause radio interference such as microwave ovens, cordless phones, etc. away from the router and your console
- Adjust your console’s distance to the router
- Alternatively, switch to a wired Ethernet connection for optimal connectivity
To troubleshoot this issue further, please visit the following Network/Connection Troubleshooting Guides:
If the issue persists, we recommend contacting your Internet Service Provider for additional assistance with your network environment.