SharePoint Extranet is not allowing adding documents in Windows Explorer

We have an extranet site that is SharePoint 2013 hosted internally. Recently, we have noticed that users cannot upload multiple documents using the Windows Explorer option. Screenshot of error received when attempting drag and drop with IE or drag and drop with Windows Explorer. We are also not able to use the drag and drop functionality either (we get the same error) although at least drag and drop works with Chrome and Firefox (which we do not support in our environment).


Has anyone ever seen this before or have any idea what can be the issue? Thanks so much!
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janicet123Asked:
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janicet123Connect With a Mentor Author Commented:
Hello and thanks for your reply. We found the issue after an exhaustive brainstorming session with our network team. The issue was actually with one of the IRules that were set up. The external rule was redirecting internal users, and this was effectively telling client computers that they didn't have access to site. Once we fixed the IRule, everything started working again. It was a good lesson learned since we didn't realize the issues that could arise from this. We also have another test case for when we make future IRule changes.
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Walter CurtisSharePoint AEDCommented:
I have seen this before. Make sure you are using the 32bit version of IE. As far as the issue in Windows explorer, remember that IE security settings are the same settings Windows Explorer users or applies. Therefore, review client side security settings in IE for what may be causing this.

Good luck
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janicet123Author Commented:
It was a one-off issue that caused this and something that we could not have anticipated. I was hoping it was a common issue and not due to our environment, but thankfully our internal team has resolved this.
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