Don’t know what the error code Weasel is or how to fix it in Marathon? If so, this guide will come in handy.
Weasel is one of the many errors that players encounter while playing Bungie’s latest IP, Marathon.
And if you think you have seen this error code somewhere else, you are not wrong. You may have encountered it while playing Destiny 2.
So with that said, here’s what error code Weasel is and how you can fix it.
What does error code Weasel mean in Marathon?

Error code ‘Weasel’ is a network issue, just like ‘Marionberry,’ indicating an issue with your network setup.
While Bungie often says that it arises whenever your modem/router undergoes a bad state, or when your PC or console is facing connection issues, there’s more to it.
As far as I have seen, most of the time, just like Currant and Anteater error codes, it arises whenever the game servers are overloaded or are down.
Moreover, in rare cases, it also arises when you have Cross Save enabled, and you are trying to log in and play the game on multiple platforms at the same time on the same profile.
How to fix the error code Weasel in Marathon

First of all, before we talk about fixes, make sure Marathon’s game servers are up and running, and there are no server-side issues.
If everything is fine on Bungie’s end, power cycle your modem/router and console or PC. To do that, just unplug the cable and plug it back in after 50 to 60 seconds.
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Doing so should fix the issue. If not, follow the fixes below, while also ensuring you have only one instance of the game running.
Modem + Router = Issues
Most of the commercial cable modems that we use have a router with wifi functionality attached to it, which leads to an unstable internet connection, which, as per Bungie, often causes different network issues while playing their games, including Marathon.
To fix this, it is recommended to disable the router functionality, as a Cable connection is a way better option than the wireless one.
Check your modem/router manual and set it to “Bridge” mode, which in some cases may also be called “NAT Disabled” mode.
Double NAT Type
Double NAT Type occurs when your system and Marathon or any game report a different NAT Type.
To fix this, you must set your modem/router in “Bridge” mode or “NAT Disabled” mode.
Cable Modem Resets
Most of the modems restart automatically whenever they encounter an error that exceeds a certain threshold, commonly known as the “error rate reset threshold.”
While a regular user never reaches the threshold, if the issue is from the ISP’s end, it could lead to a network error in Marathon, too.
So contact your ISP and double-check if everything is looking fine from their end.