N600 WiFi Cable Modem Router(C3700v2)

[GApeach1970]

My WiFi Cable Modem Router will not connect to the internet anymore. I have tried the disconnect the plug and the from the wall (cable connection). Any other suggestions before I do a factory restart and wipe everything clean. ANY help is greatly appreciated....Thanks

Not all the lights on the modem/router are lite

[plemans]

what lights are on? 

What color are they?

Do you have a screen snip of the cable connections page and event logs? 

Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, bad/old/cheap connectors, or corroded connections. Replace them if you do.
If you can, simply connect the modem right where the coax comes into the home. This prevents wiring in the home from being the issue. And some ISP’s charge if the wiring issue is in the home. So this helps prevent this.