Receiving a "Webservice Unavailable" message when trying to NetFile an AT1 or CO-17 from the corporate T2 module.
The message following this error incorrectly indicates that the return can be transmitted to the CRA Transmission Web Site. CO-17 and AT1 do not use the CRA Transmission Web Site, but their own provincial government agencies - Quebec and Alberta respectively.
This message will be updated in a future release to not only include the specific provincial agency message.
However, in the event of this message appearing, follow the usual troubleshooting step.
Exit ProFile and go to:
Control Panel > Internet Options
Click Advance > Security section
Check the boxes for
Use SSL 2.0 & 3.0
Use TLS 1.0, 1.1 & 1.2
Ensure Pop-up blocker is turned off
Privacy > uncheck Turn off pop-up blocker
Clear cache and cookies
General > Delete
Ensure that only "Preserve Favourites..." and "Cookies and website data" are checked. Everything else should be unchecked.
Privacy > Advanced > uncheck (if there is a check mark)
Check Proxy settings
Connections > Advanced > uncheck "Use proxy server...."
On Internet Explorer, go to Tools in the menu bar:
Compatability View Setting > Check "Display all websites in Compatibility View
Check for .NET 3.5 and Windows Updates
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