Exchange Online User No Access To OnPremise Public Folders

I followed the process here:

https://technet.microsoft.com/en-us/library/dn249373%28v=exchg.160%29.aspx?f=255&MSPPError=-2147217396

At the end there is an Important note about an exchange online user getting this error (which I am getting):

Cannot expand the folder. The set of folders cannot be opened.
Network problems are preventing connection to Microsoft Exchange.

I moved a mailbox from On-Premise to the cloud, which left a 'Remote User Mailbox' object behind, so the user has an exchange object On-Premise. I tried deleting that object and created a MailUser object instead, but I still had the same issue (I since changed it back).

Any troubleshooting suggestions?
LVL 2
byt3Asked:
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byt3Connect With a Mentor Author Commented:
I had this issue posted in the technet forums as well, where with the help of members there, I was able to resolve the issue.

https://social.technet.microsoft.com/Forums/en-US/f61aa4a2-5bfc-4fa2-be5d-df4a7ce2fdd6/exchange-online-user-access-to-onpremise-public-folders?forum=onlineservicesexchange
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viktor grantExchange ServersCommented:
Hi,

In order to access to Public Folder in Exchange on premise. The mailbox Office 365 must be linked to an on-premises user account.

Do you have the mailbox online linked to an on premise account?

Cheers
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byt3Author Commented:
The online user mailbox "Staff.One" has an OnPremise Remote Mailbox account.

Exchange Online User Object
Exchange OnPrem User Object (GUI)
Exchange OnPrem User Object (Cmd)
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byt3Author Commented:
I found the answer with the assistance of others in a different forum.
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