When I tried to activate office 2013 for an user I received 2 errors:

1. "This feature needs to connect to the internet. Do you want to allow office to connect to the internet"

2. "The account is not associated with this office product, please sign in with the account associated with your product...."

The ID and password are present in O365 portal and can login to "https://portal.office.com" without any error. When I tried to activate office 2013 with the user's credential in another compluter, I was successfully able to do it.

Following are the things I performed as part of trouble shotting:

1. Checking if the system is connected to the network thru LAN and if it is connected to Internet. 

2. Reset Internet settings from IE-> Tools -> Internet Options -> Advanced -> Reset.

3. Created HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Common\Internet\UseOnlineContent and set the value to 2 and tried to activate. Later changed the value to 3 and tried to activate.

4. Repaired Microsoft Office 2013 in the system.

5. Checked if any other Internet website can be opened from IE. answer was yes.

6. Finally, Reboot the system.

Please let me know what am I missing? As office 2013 is not activated yet, I believe that's why File -> "Options" is showing greyed out, so I cannot check the TrustCenter settings.

I will appreciate if you provide a solution to this issue.

I appreciate your response.

Now to answer to your question, We provision users with "Office 365 ProPlus" license.

The error "The account is not associated with this office product, please sign in with the account associated with your product...." has occured in past for several users and setting up registry key "UseOnlineContent" with value data 2 has always resolved the issue earlier. But now we are getting an additional error along with this error. That's  "This feature needs to connect to the internet. Do you want to allow office to connect to the internet".

I am unable to check the trust center setting "Allow office to connect to the internet." as "Options" is greyed out. I am assuming it is because Office 2013 is not activated yet in his machine.

When I checked Internet connection in his system, everything looks fine. I can access any internet website without any issue.

My assumption is , if I could find a resolution for "This feature needs to connect to the internet. Do you want to allow office to connect to the internet" error my issue would be resolved. But I just cannot figure out the root cause.

Please help!