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Office 2019/Windows 10/Proxy Server prompt

Question

Monday, June 8, 2020 10:57 AM

Hi,

Our users keep getting prompted for Proxy Server Credentials the first time any Microsoft Office product is opened in a session.  It doesn't matter which one, and also happens when using the preview pane in Explorer.  

Each time, the user is prompted for credentials.  Unlike other questions I have seen on here, it seems to be prompting for our local network (nsnet.net).  We do have Bypass Proxy for local addresses checked.  

It doesn't seem to matter what the user enters into the prompt - we have tried various possibilities including our network username and password, nothing at all and random words.  Each time, whatever is entered, the prompt appears five or six times and then disappears.  It will not reappear for the rest of the user session but as soon as the user logs out and back in, the prompts will come back.  

I have tried disabling Office internet access but that made no difference (and also we don't want to do that). I can't add the server to a list of addresses to bypass as we use a PAC file for proxy configuration that is hosted and run by another party.  I have contacted them and their response was that it should be being bypassed for local addresses.

I don't know why I'm getting these prompts.  Can anyone help?

Thanks,

Phil  

All replies (3)

Tuesday, June 9, 2020 2:13 AM

Hi Phil,

Thanks for posting in TechNet forum.

Here is the Office Forum, which is primarily responsible for general issues related to the use of Office desktop programs.

Since your question is more biased in favor of Windows network, to help you better, we'll move your post to the Windows network forum.

Thank you for your understanding.

Best regards

Itch Sun

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Tuesday, June 9, 2020 8:22 AM

Hi,
Based on my research, I found out several possible ways to resolve this issue.
Here is one of the method:

Change the DWORD value to set the user's preference, please follow these steps:

  1. Click Start, click Run, type regedit in the Open box, and then click OK.
  2. Locate and then click the following subkey:
    HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\Internet\
    Note: If you cannot find the Internet subkey, you must create it. To create the Internet subkey, click New on the Edit menu, click Key, and then type Internet.
  3. Locate and then click the following value:
    UseOnlineContent
    Note: If you cannot find the UseOnlineContent value, you must create it. To create the UseOnlineContent value, click New on the Edit menu, click DWORD Value, and then type UseOnlineContent.
  4. Double-click the UseOnlineContent value.
  5. In the Value data box, type the appropriate value. The following list contains the possible values:
    • 0 - Never show Office Online content or entry points
    • 1 - Use only offline content whenever available, for example, .chm Help files
    • 2 - Use Office Online content whenever available
  6. Click OK, and then quit Registry Editor.

For the detailed information, you can refer to the following link which introduces a similar case with your issue:

How to get rid of prompts for credentials connecting to proxy Server officeimg.vo.msecnd.net in Office 2013

You can try the provided methods in the link to see whether they could resolve the issue.
Hope this can help you.
Best regards,
Phoebe Wu

Please remember to mark the replies as an answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected]   

Friday, June 12, 2020 2:10 AM

Hi,

Just want to confirm the current situations. Was your issue resolved?

If the information provided is helpful, please mark my previous replies as answered.

Please feel free to let us know if you need further assistance.

Best regards, 

Phoebe Wu

Please remember to mark the replies as an answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected]