[Unable to retrieve patch data.]

I had the same issues. To fix go here:

 

http://answers.ea.com/t5/STAR-WARS-The-Old-Republic/GUIDE-Launcher-Troubleshooting/td-p/4805820

 

And follow the steps from heading "II. Launcher Cannot Patch Itself"

 

Also try deleting old patch data: "C:\Program Files (x86)\Electronic Arts\BioWare\Star Wars - The Old Republic\patch" I backed my data up just in case.

 

[Steam Overlay - Working on win7]

This worked for me. Thank you very much. I used Windows 8.

[Welcome to Game Update 2.9: Galactic Strongholds Early Access!]

Was working fine before the "fix" now I get "Unable to retrieve patch data. Please check network connection (311)"

 

Well, internet is working fine, I can do everything else. What gives?

 

Some problems here for me. Please help. Very un-happy Subscriber.