Hello,
My first post here though I've been browsing these forums once in a while in the past.
So currently I have this strange issue with my Motorola Surfboard modem which I haven't used in a while and when I try to power it, it makes some kind of hissing (coil whine?) noise but then the intensity of the noise decreases over time from the start until after 15-20 minutes where the noise can be barely heard and eventually goes away. Not sure if something internally went bad or something else. Another symptom is that on the front panel of the modem with all of the LED status lights, when I plug the power into the modem, it first flashes all 4 lights (guessing as some power on self test) and then it shows partially lit amber light for the Wifi LED. I'm not exactly sure what that means or if that means there is not enough power going through or something else. It appears that when I connect an ethernet cable to the modem from my computer and then plug the power cord in, the modem appears to behave correctly where it does the power on self test with the 4 LEDs lighting up and then showing a green light for the power LED light (this behavior usually appears after I leave the modem plugged in for some time while it only shows some light coming from the Wifi LED). This behavior does not always work initially but after I leave both wires plugged in (ethernet and power) for some amount of time, then the amber light from the Wifi LED goes away and shows a normal green light from the Power LED status. Also, sometimes it does not power up sucessfully at all and stays at the stage where it only shows an amber light for the Wifi LED.
Motorola brand (not ARRIS)
Model: SBG6580
P/N & IC Model: 583315-006-00
Thanks for your help and time!
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