Happy 2nd Anniversary! Check out the Character Models page for the new faces & hairstyles, available via the brand new Barbershop!
Please help to contribute towards the Anniversary 2024 page!
POL - 3001/4001
From HorizonXI Wiki
Solutions
This is usually a port in use error. Try rebooting your PC. Further steps may involve your firewall.
"Found the problem. Restarted router and cleared up a port issue."
It has been reported that the steps suggested in POL - 3101/3100 fix this issue.
Try connecting with ethernet cable rather than wifi. A discord user reported that rebooting their router without a SIM card fixed their issue (TMobile home internet).