Unable to Sign-in to Extension Warehouse

I can’t log into the extension warehouse. This pops up everytime I try to sign in:

The same error comes up when I try to log into Trimble Connect from the main window pull down.

Please help!


  1. Quit SketchUp
  2. Clear C:\Users\Your_User_Name\AppData\Roaming\SketchUp\SketchUp 2016\SketchUp\cookiejar.xml
  3. Open IE. Clear Cookies and cache data.
  4. Restart SketchUp, and click the login button lower left window (tool tip is “not logged in”).
  5. Login. If it fails, retry. If you get Authentication Error again, repeat steps 3-5

I have tried this 20 times and it still isn’t working. Please help!