Forum Discussion
Authentication prompts when opening a document
After weeks of digging I believe I found the source of the prompt issue:
On an affected machine open up Registry Editor and navigate to:
"HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\ServicesManagerCache\ServicesCatalog"
In our case I found these entries to be the culprit:
TP_BOX_BETA
TP_BOX_2
TP_EGNYTE_PLUS
I've simply deleted these entries and the prompts immediately stopped on my own machine.
In my instance most of the users were affected, so I created a GPO that would modify(delete) these entries upon user login - not had a report of the prompts since. As a safety measure I've also disabled the "Optional Connected Services" for Office users in the Trust Centre\Privacy settings.
Our environment is a mix of W10/W11, Citrix (Server 2012 R2) users.
How I found the solution:
After days of digging around in the Office suite settings, our network settings and not getting anywhere with our network support guys I thought I'd check the registry to see if anything pops up relating to
storage.googleapis.com & cdn01.boxcdn.net, that's how I stumbled upon those entries.
Hope this helps as I've been lurking this thread for weeks now hoping for an answer.
V.
I tried deleting only the "thumbnails" registry key under TP_EGNYTE_PLUS and it seems to work.
The problem is that after a few days the key recreates itself....
It remains to be understood what egnyte.com is for and why it has to download icons from storage.googleapis.com....
- Egnyte seems to be an optional Office integration, however no idea why it keeps popping up as we never even looked at using it. I keep a group policy on that mods the registry files - that seems to have worked rather well so far, I believe only had 1 or 2 users that reported the proxy prompts since implementing, both of which were result by a simple gpupdate.