This error may occur when launching Last Epoch due to networking problems.
We recommend these troubleshooting steps;
- Performing a Clean Boot in Windows to rule out background applications.
- Try temporarily disabling any proxies, VPNs, and IP filtering software you are using.
- Performing a power cycle and clearing your DNS cache.
- Consider flagging the game as a trusted application in your security software.
- Check this unofficial website to see if Steam is experiencing technical difficulties.