I hade try all the step of the troubleshooting guide. So I do the log and dxdiag process
→ when i go offline to the launcher I can see all the stuff like marketplace, tutorial, but I can’t never log me in always this message : “Could not establish a web session. Please try again.”
Hi! I have the latest dx version for windows 8.1 (via windows update)
“DirectX 11.2 is included in Windows 8.1, Windows RT and Windows Server 2012 R2.
Note There is no standalone update package for DirectX 11.2. You can only install this DirectX version through Windows Update in Windows 8.1, Windows RT and Windows Server 2012 R2.”
Thank you for the information and being patient. The logs you provided along with your dxdiag appear to be the standard logs. Could you please try generating your DEBUG logs? These will provide more information than the standard ones. Steps for the DEBUG logs can be found here.
I’m sorry for the delay. We’re still looking into the issue for you. Could you please try the following (if possible):
Uninstall the launcher through control panel.
Open a Command Prompt window via the Power User Menu -hold the WIN and X keys down together, or right-click on the Start button, and choose Command Prompt.
At the command prompt, type: ipconfig /flushdns
Reboot your system.
Reinstall launcher using the latest version available from the Unreal Engine website.
If you are not able to or do not wish to uninstall the launcher because you are using the editor in offline mode, then just try flushing the DNS and reboot.
We haven’t heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you’re still experiencing this issue, please try the suggestion that I mentioned above then post back here with the requested info.