On 12/24/2018 2:31 PM, John McGaw wrote:
On 12/23/2018 11:05 PM, M.L. wrote:


The broadband light on the Arris NVG510 is blinking red on an
Ethernet-connected Win10 desktop computer. Restarting the router
didn't help, and it continues blinking red even when the Ethernet
cable is disconnected. However, all smartphones on the network have
WiFi working and connected to the expected SSID. Why doesn't the
broadband issue affect the wireless connections?


You seem to be certain that the red light means that communication are
absolutely and totally lost but what happens is it merely means that the
connection is intermittent or sub-optimal? What if the "red light flashy
circuit" is reacting badly?

Manuals don't always say what they mean -- sometimes the manual writer
really has no clue of what is actually going on beyond some vague
notions and notes from the designers (and designers don't always pay
much attention to correcting the drafts of the manuals even if they are
actually included in the loop). If you are sure that you have connection
and can perform tests to prove it then you _have_ connection no matter
what the light is telling you. Think of it as a defective "check engine"
light -- put some black tape over it. When the communications are truly
lost then you will have _no_ question about it and you can gaze at the
LED then.

That said, I'd certainly be badgering my ISP for an immediate (free)
replacement of the old one and the flashing LED is as good an excuse as
any.

Agreed, it looks like the h/w is failing.