Can't Sign In/ Unable to Log In to 3D Warehouse

[Fikli]

Hello,
II have been using SketchUp for 3 years, but recently I got automatically signed out of the 3D Warehouse. Whenever I click “Sign In,” nothing happens / it fails to log me in.
Just Error and a message:

Error: ERR_CONNECTION_REFUSED
Message: This site can't be reached - api.sketchup.com refused to connec.....

A friend of mine is experiencing the exact same issue.

1. Operating System Windows 11
2. SketchUp Version 2026

Troubleshooting tried so far:

• Tested on multiple web browsers (Chrome, Edge, Firefox, Opera)

• Cleared browser cache and cookies

Has anyone found a solution or workaround for this?

[dezmo]

I just tested it, logging out and logging in without any problems in Chrome and Edge browser.

Maybe add/popup blocker, VPNs, proxy servers, or firewall/antivirus …blocks that prevent your browser from communicate to Trimble servers.