Re: [LAUNCHER] "Unable to retrieve Patch Data (208)"
I did a quick search and found the following from here
208 is a communication error talking to either the manifest.swtor.com or the CDN-patch.swtor.com , if the issue is the CDN changing DNS server and flushing the DNS cache can sort it.
This can be local caused, but sometimes it can be a net routing issue, if on the net , sometimes rebooting the router/modem and if it changes IP address it will be gone as the issue will be tied to IP ranges.
Using a VPN like www.hotspotshield.com can also be used as a short term workaround if it is a routing issue.
Maybe also try using a wired connection instead of wireless if you are using that. Next step would be to try to do an IP Config Release / Renew to see if that clears it up. Also try disabling and then enabling your Ethernet / wireless card in your computer.
If your still experiencing issues, please attach a copy of your launcher logs found in the following directly:
C:\Program Files (x86)\Electronic Arts\BioWare\Star Wars - The Old Republic\logs