When I launch the Entropia Universe client, I instantly lose connection.
There are a few things you should check:
Do you meet the minimum system requirements?
Are all checks green in the "Your Computer" status in the Client Loader?
Try lowering your Connection setting in "Options" on the Entropia Universe Login Window. Even though you have ADSL or an even better connection, try setting the connection speed to 56 kbit to check if that improves your situation. If yes, you may try to set it higher step by step, to see which connection speed works best with your specific system.
If you have a router, make sure the router configuration has the ports listed below forwarded to your computer. Also make sure the firmware of your router is up-to-date (please turn to the manufacturer of your router for any specific questions regarding this matter)
Try disabling the sound in "Tools" in the Client Loader.
Open these ports in your firewall:
20, 21 (TCP Outbound) - Additional TCP Port outbound for passive mode FTP
30584 (UDP inbound/outbound)
30583 (TCP Outbound)
554 (TCP Inbound)
If you still experience issues after these checks have been seen to, please contact Support.