InvalidAuthSession - Rust

InvalidAuthSession - Rust

Some Rust players are seeing the ‘Steam Auth Timeout‘ error after being kicked out of the game. While this can be frustrating, Here’s a shortlist of potential culprits that are confirmed to trigger the ‘Steam Auth Timeout‘ error:

InvalidAuthSession - How to fix

  • Underlying Server issue – Before enforcing any potential fix, you should start by ensuring Rust is not currently dealing with a mega server issue or a Steam server issue. This particular error was reported to happen in the past when the Steam Connection Manager was down. If you’re indeed dealing with a server issue, there is no fix other than waiting for the problem to be resolved by the involved developers.
  • Conflicting Steam Beta channels – If you’re currently an active participant on any Beta channels in Steam, one of these channels might conflict with Rust. In case this scenario is applicable, you should be able to fix this problem by opting out of the Steam channels. After doing this, you could re apply on some of them to see if everything should be fixed, taking it to a minor few beta channels being the troublemaker. 
  • Game integrity issue – File corruption in your game file can also be responsible for the apparition of this particular issue. If this scenario is applicable, you will be able to fix this problem by triggering a game files integrity check from the Steam’s menus.
  • Corrupted Easy Cheat Engine – A false positive or a legitimate malware threat might determine your antivirus to quarantine some files belonging to the Easy Cheat Engine, which might end up triggering this error. To resolve this problem, you’ll need to repair the Easy Cheat Engine using the built-in functionality.
  • Corrupted files inside Steam’s Download Cache – If you have a lot of items pending to be downloaded inside the Download queue of Steam, this might end up triggering constant crashes with games launched via Steam. This happens due to insufficient bandwidth. In this case, you can fix the problem by clearing the download cache before re-launching the game.
  • Corrupted game installation/launcher – Under certain circumstances (rare), you might expect to see this problem occurring due to some type of underlying corruption issue either related to Steam or with the main Rust installation. In this case, you should be able to fix this problem by reinstalling both components and then launching the game from scratchs.
  • DNS Flush - Another option, wich is pretty big and drastic, is a DNS flush. Its a bit like deleting cooking from your browser, making it easier to connect again afterward.