Cannot access network remotely - Time Warner Internet

This question is about "Cannot access network remotely", with Time Warner Cable internet and apps. Arris router; Ruckus wireless

Prior ti installing Spectrum internet we could easily remotely access the network to review and control various systems. Now, any attempt to remotely access our system using the correct remote login is blocked. We were told by the installer that everything would be the same after the instalation. Well, he was so wrong.

What now? Cast bones? Give the units a good bashing?

Cannot access network remotely?