1 Message
Slow upload speeds - Nighthawk CM2050V
Hello all,
Hoping someone can help with this issue.
I have Xfinity Gig Plus Internet. My neighborhood was upgraded. Advertised speeds are up to 1.2Gbps download and 200Mbps upload.
Download works great. Get between 1.1Gbps and 1.4 Gbps consistently since I upgraded to my current modem (modem before was Xfinity provided).
Having issues with upload. If I reboot the modem, it negotiates upload using Upstream OFDMA Channels:
Upstream OFDMA Channels |
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Upstream Bonded Channels |
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Under this negotiated connection, I get between 150Mbps - 250Mbps upload.
Throughout the day, the modem upload indicator light flickers. Sometimes it stops, maintaining the Upstream OFDMA Channels and great upload speeds.
Sometimes, the light flickers and it turns amber instead of blue.
When this happens, my upload speeds are 17Mbps - 22Mbps (pretty significant difference)
I notice that the Upstream OFDMA Channels is not present / not locked:
Upstream OFDMA Channels |
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When it goes into this mode, it stays this way. No matter how many times the upload indicator flickers. If I reboot the modem, it goes back to negotiating Upstream OFDMA Channels. Excellent upload speeds. Then after a few hours or a day, it goes back to the degraded state.
Inline hardware:
Inline splitter:
Anronix 2-Way Splitter 5-1002MHz CMC2002H-A
Modem:
Description: Nighthawk 2.5 Gbps Ultra-High Speed Cable Telephony Modem
Model: CM2050V
Router / Wi-Fi:
BE22000 Whole Home Mesh Wi-Fi 7 System
Model: Deco BE85
Any ideas on how to resolve this?
Thanks,
XfinityEricB
Official Employee
•
2.1K Messages
1 year ago
Hello @user_2dpkl3, and thank you for reaching out with your upload concern. I would be happy to take a look into the issue with you.
Can you send us a direct message with your full name, name of account holder (if different), and service address please?
To send a "Direct Message" to Xfinity Support:
Click "Sign In" if necessary
Click the "Direct Messaging" icon (speech bubble)
Click the "New message" (pencil and paper) icon
The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there
- As you are typing a drop-down list appears. Select "Xfinity Support" from that list
- An "Xfinity Support" graphic replaces the "To:" line
Type your message in the text area near the bottom of the window
Press Enter to send it
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