How and Why Error E105 Happens
Error E105 on Xbox consoles (Xbox One, Series X/S) and the Xbox app on Windows occurs when the system fails to authenticate your Microsoft account during sign-in or gameplay. This error is typically triggered by corrupted local profile data, expired session tokens, or network issues preventing communication with Microsoft’s authentication servers. The Xbox console relies on secure token exchanges between your account and Microsoft’s backend services; if these tokens become invalid or the connection is interrupted, E105 appears. Unlike transient errors, this issue often stems from persistent configuration mismatches or incomplete updates to system files, which prevent automatic recovery. On Windows, the Xbox app may also encounter E105 due to conflicts between cached credentials and live server data, especially after account changes or regional settings adjustments.
Possible Fixes
Fix 1: Reconnect Your Microsoft Account via Network Settings
Navigate to the Xbox console’s main menu, select Profile & System > Settings > General > Network. Choose Test Network Connection to verify internet stability. If the test fails, restart your router and reconnect the console. Return to Settings > Network > Advanced Settings > DNS, then set Preferred DNS Server to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare). Save changes and retest. For Windows users, open the Xbox app, click Profile > Sign Out, then Sign In again using your Microsoft account credentials. Ensure you’re logged into the same account across all devices to synchronize session data properly.
Fix 2: Reset Xbox Console’s Network Configuration
On the Xbox console, go to Settings > Network > Advanced Settings > Reset Network Settings. Confirm by selecting Yes. This clears stored Wi-Fi passwords and IP address assignments, forcing the console to re-establish a fresh connection. For Windows users, open the Xbox app, click Profile > Manage Profiles, then select Remove Profile. Re-add your account through the Sign In prompt. Ensure no other devices are using the same Microsoft account on the network to avoid credential conflicts.
Fix 3: Clear Cached Credentials and Restart Console
On Xbox consoles, go to Settings > Accounts > Sign-in Options > Remove All Accounts. Re-add your Microsoft account by selecting Sign In from the main menu. For Windows users, press Win + R, type “rundll32.exe sysdm.cpl,EditEnvironmentVariables,” and set the variable “XboxLive_SignIn” to empty. Restart the Xbox app and log in again. This removes residual authentication data that may interfere with new session tokens.
How to Prevent E105 in the Future
Regularly update your Xbox console and Windows system via Settings > System > Updates. Ensure a stable, high-speed internet connection for seamless server communication. Avoid using public Wi-Fi for account sign-ins; instead, use a dedicated home network. Periodically sign out of your Microsoft account on all devices and re-sign in to refresh session tokens. If traveling or changing regions, update regional settings in Profile & System > Accounts before logging in. Monitor system health via Xbox’s built-in diagnostics tools to catch potential issues before they trigger E105.