3 Messages
Switched from Motorola MB8611 to Netgear CM3000 - still having issues
I had been having issues with the dreaded MB8611 modem for over two months without anything ever being fixed. Connection dropping constantly. Motorola suggested I add a return path 12 dB attentuator because my upstream dbmv values were at 31/32. Now, those levels are at 44-45 dB, which are supposed to be optimal. My SNR levels are strong at 41.5 dB. My downstream dbmv values range between -1 and +1.
Now, my brand new CM3000 is having connection issues too. I posted the latest events I'm getting. I cut off the log where the MAC was exposed. Any advice on what gives?
XfinityThomasA
Official Employee
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1.9K Messages
6 months ago
Thank you for your detailed post, and for joining us here on the forums, user_sl5rqx. The 16 consecutive timeout is a cause for concern as it normally indicates noise on the upstream and could impact the signal-to-noise ratio (SNR). Let's work together to schedule an expert Xfinity technician to get that corrected. Can you please send a direct chat message with your full name and complete service address to “Xfinity Support”. To do so, click on the chat icon located at the top right of this forum's page.
Here are the detailed steps to direct message us:
• Click "Sign In" if necessary
• Click the "Direct Message” icon (upper right corner of this page)
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list
• Type your message in the text area near the bottom of the window
• Press Enter to send your message
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EG
Expert
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107.6K Messages
6 months ago
@user_sl5rqx @XfinityThomasA
Please circle back here and post any possible solutions for the issue here in these open forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.
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