We operate both A2+ and V2 interfaces, and only the latter support PTM.
The only way to quickly get to the bottom of this will be to obtain CPE from Sonic and see if that resolves the issue. If it does, you've discovered some challenge with the Actiontec. If it doesn't, we can fully engage in end-to-end troubleshooting of your loops, including tech dispatches if needed. But with the Actiontec in place, we have to assume an interop or config issue with that gear, as it's never been tested in our environment.
The only way to quickly get to the bottom of this will be to obtain CPE from Sonic and see if that resolves the issue. If it does, you've discovered some challenge with the Actiontec. If it doesn't, we can fully engage in end-to-end troubleshooting of your loops, including tech dispatches if needed. But with the Actiontec in place, we have to assume an interop or config issue with that gear, as it's never been tested in our environment.