Question about Arris SURFboard SB5120 Modem

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Im having problems getting my modem to get online. The light wont come on. All but the online light come on. The online light blinks then all the lights go off except the power light, and the receive light blinks,becomes steady,then the send light blinks,becomes steady,then the online blinks and blinks. then the process starts all over again. 3 steady lights ,1 blinking light.

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Re: Im having problems getting my modem to get online....

Your modem is not synching. It could be a number of possibilities, and you're going to have to do some troubleshooting to narrow it down.

  • Verify that your AC, Cat 5, & ethernet cables are connected securly
  • Verify that your modem is not in "standby" mode
  • Power cycle your modem
  • Try a different cable outlet
  • Call your ISP to make sure your modem is provisioned and your service is set up for cable internet.

Posted on Nov 09, 2007

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