SharePoint 2016: 403 Forbidden Error on Connecting to Site after Move

Problem

Logged onto farm CA server, and then executed the following commandlet to move all site collections in one database to another:

Get-SPSite -ContentDatabase [SourceDatabaseID] | Move-SPSite -DestinationDatabase [DestinationDatabaseID]

followed by an IISRESET. Then tried connecting to the site again to verify that it is operational.  On connecting, experienced a 403 Forbidden error presented in the browser.

Solution 

• Execute IISRESET on the farm server hosting the content web application.

References

• Get-SPSite
• Move-SPSite
• Dismount-SPContentDatabase