Error 0x803F900A
How to Fix Xbox App Sign-in Error 0x803F900A
Fix Xbox Game Pass login timeouts and subscription verification errors.
Symptoms
- Xbox App displays: "Sign-in to your account again" with 0x803F900A
Common Causes
- Expired cached tokens or out-of-sync system date settings
Step-by-Step Solutions
Method 1: Repair Xbox and Gaming Services Apps
- Go to Settings > Apps > Installed Apps.
- Find Xbox, click Advanced Options, click Repair then Reset.
- Repeat for Gaming Services and Microsoft Store.
Frequently Asked Questions
No, Xbox cloud sync recovers your saves automatically upon logging back in.