Help with Set-top box

[#1]

Hello. Been having this issue for 3 days now, called verizon and they said about a week to get out to me. I was wondering if I could resolve this myself sooner. 

Ok so here's my problem. I turn on my tv i get "We have detected an issue with poor or no video signal on your Set Top Box" as well as  " Your Set Top Box is having difficulty connecting to the server".

Ive reset the box multiple times I am not the main box in my room I have tried a working box from another room same thing came up on this box as well. Ive tried 3 diffrent coax cables, as well as 2 diffrent Stb cables. Every box in the house is working fine as well as internet. Ive reset everything that can be reset (main box, router, my box) and used a diffrent box. Anything else i can try?

Thanks for the help!

[#2]

Sounds to me like you have an issue with the ONT which will require a tech.

The only other thing I can think of checking is if you have a splitter in your house. If a splitter goes bad it can cause issues.

[#3]

It is not the equipment. It is an issue with the line that feeds this room. Either the line is bad or the splitter is bad. You determined that when you moved a working box an it has the same issue. Also you other rooms works so its not the ONT.

[#4]

The RF signal feeding the STB is too low. The acceptable range can go down to -6db you are below that. Either a bad splitter or coax.