Error 100 can't sign in to Windows Zoom client

[peterblaise]

Has anyone seen this before and fixed it?

Who's got successful experience to share?

Error 100 can't sign in to Windows Zoom client

How do we troubleshoot this?

We've got 2 Windows 7-64-bit computers, one works with Zoom, the other doesn't, we tried r&r remove & reinstall 32-bit and 64-bit Zoom client, several malware scans ( all negative ), deleting the

[ C:\Users\...user...\AppData\Roaming\Zoom\data ]

directory, thorough resetting of Windows to OOB out of the box defaults, reset networking, running a cable directly to the same router where the working computer is connected, no luck ( other remoting software works - Teamviewer and the like ) - how can we troubleshoot and fix Zoom so it works?

( Note: we now CAN log in through Chrome browser, but Firefox browser shows [ Network error ], for what it's worth, Opera browser required arduous searching for cookie permission settings - but that's browsers, NOT the Windows Zoom client software ).

We tried these:

https://support.zoom.us/hc/en-us/articles/201362983-Uninstalling-and-reinstalling-the-Zoom-applicati...

and ran:

https://support.zoom.us/hc/en-us/article_attachments/360084068792/CleanZoom.zip

and tried:

https://support.zoom.us/hc/en-us/articles/7970865190285-Clearing-Zoom-cache-and-cookies

Does anyone have an troubleshooting tools, tips and tricks, resetting schemes to track down what Zoom expects, and find where it's stuck, and fix it?

Thanks.

.