Only ONE downstream channel being used and no DOCSIS 3.1 on upstream? [Arris SB8200 modem] - Time Warner Internet

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This question is about "Only ONE downstream channel being used and no DOCSIS 3.1 on upstream? [Arris SB8200 modem]", with Time Warner Cable internet and apps. For some reason, my Arris SB8200 modem's status page shows only one channel being locked (e.g. used?) out of my modem's 32 channels?!?



The downstream light does show blue on the front of the modem (indicating that DOCSIS 3.1 is being used for downstream). Interestingly, upstream light is green (indicating DOCSIS 3.0 for upstream/send)?



I am on the 100Mbps plan and in the Irmo, SC area (not sure if this is why upstream is limited to DOCSIS 3.0). I also bought my own SB8200 modem as my spectrum modem would no longer connect at all...



Pictures of status page:



Only ONE downstream channel being used and no DOCSIS 3.1 on upstream? [Arris SB8200 modem]?
 

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