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Question

Trouble connecting to ISP Arris SurfBoard S33

  • February 23, 2026
  • 0 replies
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Hello,

 

I’ve been having issues connecting to my ISP (Optimum Online) for the last few days and they are suggesting that it is an issue with my modem. I’ve replaced my ISP installed coaxial cable with a brand new RG6 cable as there was a tear in part of the old cable. The modem is on a constant blinking green light as of Saturday 2/21 at ~12:30 AM. On checking the status, I see the following:

Startup Procedure

Procedure Status Comment
Acquire Downstream Channel 609000000 Hz Locked
Connectivity State In Progress Upstream Parameters Acquired
Boot State In Progress Upstream Parameters Acquired
Configuration File In Progress  
Security  Failed BPI+
DOCSIS Network Access Enabed Denied  

 

Downstream Bonded Channels

Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
27 Locked QAM256 609000000 Hz 5dBmv 41 dB 0

0

 

Upstream Bonded Channels

Channel ID Lock Status US Channel Type Frequency Width Power
5 Not Locked SC-QAM 14000000 Hz 6400000 51.3 dbMV

 

From my layman understanding, most of these parameters seem okay (minus the upstream power being a little high). Is there anything else suggesting that the modem is broken, or does the problem seem to be more on the ISP’s side of things?

 

Thanks in advance!