Running into issues with the Web Client? You’re in the right place. The guides below cover the most common problems players encounter — pick the one that best matches what you’re seeing and follow the steps to get back in game. If none of the fixes solve your problem, ask in #web-general on Discord or file a bug on GitHub.Documentation Index
Fetch the complete documentation index at: https://mintlify.com/ClassicUO/classicuo-web/llms.txt
Use this file to discover all available pages before exploring further.
Test Your Browser
Not sure if your computer can run the Web Client? Use these quick test pages to validate your browser and GPU setup before diving deeper.
Storage & Download Issues
Getting “not enough storage space” errors, game files won’t download, or the client won’t run in your browser at all.
Slow, Laggy, or High CPU Usage
The game feels sluggish, your fan is spinning loudly, or you noticed high CPU usage in Task Manager.
ExitLag and Gaming VPNs
You use ExitLag or another gaming VPN and want to reduce latency or fix connection issues with the Web Client.
Using a Dedicated Browser
Keep game traffic separate from everyday browsing, or isolate ExitLag so it only affects the game — not all of Chrome.
Install the Game as an App
Get a standalone window, taskbar icon, and persistent storage so Chrome never auto-evicts your downloaded game files.