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G34 will not connect - Keep blinking Blue


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I purchased the G34 Modem last week to replace an old modem that I had leased from my ISP - upon receipt, I followed all instructions, called the ISP to set up the new and she never could get it to “ping” on her end.  It kept flashing blue.  The next morning, it was solid blue, so I called back - she was able to identify the modem and got me set up, but could tell on her end that that the service was degraded, so she she up a tech service call.   The tech was out this morning, tested everything and it is not the lines - we have good service coming to the house, but the modem will not connect.   I have power cycled it and even hard reset it several times - but nothing.  It will flash green, go solid blue for a moment, then back to flashing blue.  

Best answer by SURFboard Moderator

Based on your description, it seems like the gateway might be rebooting on its own.

To isolate the issue, please check for any damage to the coaxial cable connection. If there are no damages, remove the coaxial connection and restart the gateway. Monitor the LED lights status for 30 minutes without the coaxial cable connection.

Without the coaxial connection, the LED lights on the G36 will blink blue, which is normal behavior. After 30 minutes, reconnect the coaxial cable. If the gateway starts to loop back from green to blue, it indicates improper signal distribution.

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3 replies

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Could please let me know the name of your internet service provider and the speed plan which you subscribed from them?


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  • Author
  • The Many
  • 1 reply
  • July 8, 2025

Sparklight - 600 Mbps


Forum|alt.badge.img+42

Based on your description, it seems like the gateway might be rebooting on its own.

To isolate the issue, please check for any damage to the coaxial cable connection. If there are no damages, remove the coaxial connection and restart the gateway. Monitor the LED lights status for 30 minutes without the coaxial cable connection.

Without the coaxial connection, the LED lights on the G36 will blink blue, which is normal behavior. After 30 minutes, reconnect the coaxial cable. If the gateway starts to loop back from green to blue, it indicates improper signal distribution.


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