Visitor
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2 Messages
Slow Speed Help. (MDD Loss?)
This started yesterday. It's like my connection keeps dropping
My modem (SB6141) started restting itself over and over. After about an hour, it finally stayed on.
Since them, my download speed has been fluctuating.
It works fine for a little bit, and then it drops to hardly anything.
I have 50 down, 10 up.
Upload speed is always fine, it has no problem, it appears to only be download speed.
When working, download is about 43-44 (Not 50 like I'm supposed to get.)
When failing, the test either won't run, or it tells me 3-4 down.
I found the log page for my modem and I keep seeing this:
| Jul 26 2015 10:36:45 | 6-Notice | N/A | MDD Recovery following MDD Loss;CM-MAC=a4:7a:a4:7c:97:96;CMTS-MAC=00:01:5c:63:92:4b;CM-QOS=1.1;CM-VER=3.0; |
| Jul 26 2015 10:36:43 | 5-Warning | T202.0 | Lost MDD Timeout;CM-MAC=a4:7a:a4:7c:97:96;CMTS-MAC=00:01:5c:63:92:4b;CM-QOS=1.1;CM-VER=3.0; |
| Jul 26 2015 10:36:43 | 5-Warning | N/A | DS Partial Service Fallback: MDD Lost-> CM in DOCSIS 3.0 Recovery Mode ;CM-MAC=a4:7a:a4:7c:97:96;CMTS-MAC=00:01:5c:63:92:4b;CM-QOS=1.1;CM-VER=3.0; |
This repeats over and over. The same 3 messages each time it happens.
Does anyone have an idea of what is going on? What do I need to do to get this fixed?
Thanks.
Accepted Solution
VBSSP-RICH
Advocate
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1.4K Messages
9 years ago
Hello JeffW and welcome,
Your SB6141 Customer Owned Modem (COM) is supported by Comcast for functional operation of your Internet Service. If you can log into your COM and post a display of the upstream, downstrean, SNR signaling parameters, this would be helpful for further community forum diagnosis.
I also recommend that you contact 800-391-3000, use technical high speed internet option, and request the technical agent to verify that your boot file is reflecting your correct modem type, bandwidth, and other health check signaling parameters are all within specification.
If all of the above is in proper operational integrity, then you will need to contact the manufacturer about the internal COM hardware and firmware operational integrity.
Hope thisi helps you out.
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Accepted Solution
JeffW
Visitor
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2 Messages
9 years ago
Thanks!
Here is the Signal page:
Downstream Bonding Channel Value
[3] 64QAM
[3] 64QAM
[3] 64QAM
[3] 64QAM
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Accepted Solution
VBSSP-RICH
Advocate
•
1.4K Messages
9 years ago
It appears to me that your upstream power level @ 53 - 54 dBmv is too far out of specification. This is the root casue as to why your COM is constantly rebooting. Contact Comcast as I indicated and have them get a technician out to your business to fix this signaling by removing splitters, replacing coax conntectors that are deteriorated, etc. Just tell them that your upstream power level is at 54 and out of spec. This shold get you back up and running on a consistent basis.
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