'Hmmm...can't reach this page error' on uploading attachment in Infopath form

[WalterBranten]

There is a SharePoint Online list with an associated Infopath form (see screenshot below).
The Infopath form has an attachments field.

The form can be created by 2 users, an existing and a new user (with the same permissions).

The existing user can work with the form regurarly, the new user gets an error when he tries to upload an attachment (when clicking on the 'Attach' button).
The error new the user gets is: 'Hmmm... can't reach the page. It looks like the webpage at <site-url> might be having issues, or it may have moved permanently to a new webaddress' (see screenshot).

For this site we have a production instance and a test instance, the error is identical on both sites.

Do you have a suggestion for solving this issue?

ErrorInfopath form

[#2 · Accepted solution]

Hi @WalterBranten,

there can be various reasons for causing your issue, you can do this to troubleshoot the problem:

1. Double Check User Permissions:
- make sure that the new user has the same level of permissions as the existing user. 

2. Browser:
- clear the cache on the existing browser and/or try it with a different browser

3. Clear Office Cache:
- You can try clearing the Office cache on the user's computer:

• Open Windows Explorer.
• In the address bar, enter %USERPROFILE%\AppData\Local\Microsoft\Office\15.0\OfficeFileCache.
• Delete all the files and folders within this folder.

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Kindest regards,

Leon Pavesic

[#3]

Thank you Leon for your response.
This was the solution