@Bart35 Yes, and that helped. Everything looks okay now. Thanks for the help. Much appreciated mm Bart35 wrote I've been using a Deco X55 Mesh system with a 500 Mb Cable signal with good success....

Frontier refers to it as an ISP/Modem, but you're right it is an ONT.

I've been using a Deco X55 Mesh system with a 500 Mb Cable signal with good success. However, after switching to a Frontier 500 Mb FIOS my internet speed has dropped to 150 Mb. The signal coming into...