Connectivity
Back to Top

Only one light on

SOLVED
Highlighted
Member

Only one light on

What would be the cause for only the power light being on my business modem and no other lights?  I know when I lose connection, more lights are on than just the power light.  All the lights were off except for the power light.  This went on for hours.  I then decided to unplug it and plug it back in and all the lights came on.  Should I be concerned that I have a faulty modem?

Accepted Solution

Re: Only one light on

Can also be a symptom of an intermittently failing power supply (power adapter in the case of the SMC/Netgear devices). If a good UPS doesn't solve it, I would recommend looking into that.

View solution in context
2 REPLIES
Trusted Forum Contributor

Re: Only one light on

The most likely answer is that your modem is ok but was confused by a power glitch. This is especially likely if you do not have the modem powered through and Uninterruptable Power Supply (UPS).

Trusted Forum Contributor

Re: Only one light on

Can also be a symptom of an intermittently failing power supply (power adapter in the case of the SMC/Netgear devices). If a good UPS doesn't solve it, I would recommend looking into that.

Discussion stats
  • 2 replies
  • 885 views
  • 0 kudos
  • 3 in conversation