Error 50383-MW1 occurs when a host disappears / logs out of a session while other players are trying to connect. It can also occur when the connection with the host is broken or failed.
If this error code only happens temporarily, it is probably due to the host disbanding the session before users are able to fully connect. If the error happens frequently, the issue usually stems from a NAT (Network Address Translation) type difference between the players who are trying to connect to each other.
If you have strict NAT settings, you may have difficulty connecting to certain players. We recommend double-checking the NAT settings for your PS4 / Xbox One in comparison to the players you are trying to connect to in order to determine which type is set.
PlayStation 4 NAT settings can be found under Settings > Network > Internet Connection Status. Xbox One NAT settings can be found under Xbox Button > Settings > Network > Network Settings > Test NAT Type
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NAT Type 1 (Open) – You are either not behind a router/firewall or you have DMZ enabled. This NAT type shouldn’t run into any issues while gaming, however this may cause security issues.
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NAT Type 2 (Moderate) –Your console is connected properly and you shouldn’t run into any issues.
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NAT Type 3 (Strict) – You may be able to connect online and perform downloads/updates but other functions may not work as intended.