Call of Duty: Vanguard early-access beta has been released and there are already complaints of errors in the game, but not as much as when Cold War beta rolled out. So far, there have been just a few errors codes that we hope the Sledgehammer Game can hammer out. The Call of Duty Vanguard error code Hunter-Gruber may be out of the hands of the devs as its main cause seems to be your connection. But, that’s not to say that a server problem cannot result in the error.
With any type of connection error, it’s always one of two things, either the user’s connection is at fault or the servers are not behaving as they should. Hunter-Gruber on the other hand appears to be more due to a problem on the user-end. So far, users on PS4 and PS5 have reported the issue, but to be fair PC players have not had much time with the game yet.
Due to the nature of the error, we assume that it can occur on any device and there are some ways you can deal with the error and get back into the game. Keep reading and we will show you how to fix Error Hunter-Gruber in Vanguard.
How to Fix Call of Duty: Vanguard Error Code Hunter-Gruber
Troubleshooting connection problems are the worst. We rank it second most difficult problem next to games crashing at startup. There are just too many variables that can cause both issues and hence, the fix becomes a tedious process of going through a long checklist.
The worst thing about connection problems is you don’t know if it’s on your end or the server. Even when the servers appear to be fine, it may have a glitch that’s causing a disconnect with the server.
Usually, the only reliable information about the servers comes from looking at other users. If a large number of players are suddenly getting an error, it’s usually something wrong with the game or the server, but I don’t need to tell you that. So, the first thing you need to do when you get the Vanguard Error Code Hunter-Gruber is to jump on Vanguard Reddit and other forums and create a post or look at others’ post to see if there is an issue with the game. The official Twitter is also a good place for new updates, so check there as well.
Once you are assured the Error Code Hunter-Gruber is not caused due to a server problem, the ball lies in your court and you need to go through the dreaded process of fixing the problem. Here are all the solutions we suggest.
Reboot the PlayStation, Xbox, or PC
Oftentimes, the cause of the issue may be a simple glitch with the game that preventing your connection with the servers. If you can’t connect to the server due to the error code, a simple reboot of the game and the device should be able to resolve the problem.
Power Cycle the Console
Power cycling is a great way to fix glitches with games on console. The objective here is to drain the console of all the power and reinitialize everything. It even works to clear the unwanted cache. To power cycle, turn down the console normally, remove the power cords, now, press and hold the power button for a few seconds, re-plug the power cords, and start the console.
Change the MTU Settings (PC and PS)
The MTU settings on both PC, PS4, and PS5 play a crucial role in determining the speed of the internet. It’s possible you do not have the right setting or value that’s causing speed problems with the game and hence, the Vanguard Error Code Hunter-Gruber. We personally tried this trick with Cold War and it worked to resolve issues with connection to the server. Here are the steps you can follow for PC and PS5.
Change MTU Settings on PS5
- Click on the Gear icon to go to Settings
- Go to Network > Settings (While you are at the Settings, we suggest that you go to Connection Status and perform Test Internet Connection. A simple test often can resolve a bunch of connection issues.)
- Select Set Up Internet Connection
- Click on your registered network and choose Advanced Settings
- Go down to MTU Settings and set it to Manual
- Go to MTU and set the value to 1473
For users on PC, the default MTU should be set at 1500, which is ideal. You can check the MTU by following the below steps.
Check MTU on PC
- Open Command Prompt
- Type or paste netsh interface ipv4 show subinterface
- Hit enter.
Power Cycle the Router
The error may also be a result of a bad cache on the router. You can follow the same process as above for the console to power cycle the router. A better alternative to power cycling is to reset the router to factory mode. It should clear out any connection issues and the router will be as good as new. Look at the back of the router, there is a small hole that will allow you to reset the router.
Reinstall the Game Completely
Finally, if none of the above steps worked, the issue may be with Vanguard files from the beta and the final version conflicting with one another. If you participated in the beta or the alpha, delete all the files associated with the game such as cache, save files, and update data before you install the game. If you have already installed the game, uninstall it, delete everything and perform a fresh install. It goes without saying that if you are struggling with connection issues, it’s best to play the game on a wired connection. Wireless connections are prone to a lot of issues.
This guide is a work-in-progress. We will update the post as new solutions emerge, but at the time, these are the best solutions for the Call of Duty: Vanguard Error Code Hunter-Gruber.
