Visitor
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3 Messages
New Hitron Coda56 modem and 2000Mbps plan - Not getting full speed
I recently upgraded to the 2000mbps plan and installed a new Hitron Coda56 modem. A technician was onsite today and found upline issues that he solved that improved my signal quality quite a bit. The problem is that I still get 500-700mbps most. I was able to get to the admin page by directly connecting to the modem. WAN status shows that while DOCSIS 3.0 connections are good, DOCSIS 3.1 connections are bad.
DOCSIS 3.1 OFDM Downstream
DOCSIS 3.1 PLC power at -8.1 dBmV
SNR stuck at 34 dB
- Correcteds are over 28 million.
- OFDMA upstream report power at 50.7 dBmV
I tried to explain this to support but I might as well have been talking to myself as none of them understood what I was trying to tell them. This is the reason why I am getting poor speeds. I am trying to confirm if the router has the most recent version Firmware but apparently even that was too big of an ask.
I sighed, got another tech visit for tomorrow, hung up, and went to bed. Day 3 might have better results dealing with this item.
Accepted Solution
maymay04
Visitor
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3 Messages
2 months ago
I had a couple of tech visits which fixed upstream issues and pulled a new coaxial to the house. That fixed the majority of the issues.
I also found that dynamic QoS or really QoS at all was freaking out due to multigig. I had to disable QoS completely.
All issues resolved.
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XfinityRoberto
Official Employee
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2K Messages
3 months ago
Good morning and welcome to Comcast! I am sorry to hear that your modem is not getting the full speeds you are paying for. You are in the right place and we are happy to assist you today. Are you on a wireless connection or hardwired to the modem?
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