Connectivity
Connectivity and managing Your Comcast Business network
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Internet down daily in afternoon at Coral Gables, FL ( 33134 )

For the past year we have been having terrible service from Comcast, Internet is as bad as it could be. In the AM it "works", very slow, but at least its online, after 12 PM, it is impossible to use, the modem looses the connectivity every 1-2 hours, extremely slow, WiFi modules on the Router/WiFi Cisco modem restarts.

 

Comcast has sent a tech on multiple ocations, replaced the modem 4-5 times, replace splitters and filters 3 times, yet, they dont seem to find a solution. We increased the badwith from 25 MB, to 50 MB and just receptly to 100 MB. Also, we have removed every device that we use to have in our network trying to isolate the problem, but everything remains the same.

 

Other tenants in our building are also having same problems, some have moved to fiber, others are strugling with Comcast.

 

We really need to get a final solution.

 

Below are the signal levels of the modem and the firmware version.

 

Downstream
Channel Bonding Value
Index
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Lock Status
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Frequency
657 MHz
663 MHz
669 MHz
675 MHz
681 MHz
687 MHz
693 MHz
699 MHz
705 MHz
711 MHz
717 MHz
723 MHz
729 MHz
735 MHz
741 MHz
747 MHz
SNR
38.983 dB
38.983 dB
38.983 dB
38.983 dB
40.366 dB
38.983 dB
38.983 dB
38.983 dB
38.983 dB
38.983 dB
38.605 dB
38.983 dB
38.983 dB
38.605 dB
38.983 dB
38.983 dB
Power
5.800 dBmV
5.800 dBmV
5.600 dBmV
5.500 dBmV
5.700 dBmV
5.700 dBmV
5.400 dBmV
5.200 dBmV
5.200 dBmV
5.000 dBmV
4.900 dBmV
4.800 dBmV
4.800 dBmV
4.900 dBmV
4.600 dBmV
4.200 dBmV
Modulation
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM
256 QAM

 

Upstream
Channel Bonding Value
Index
1
2
3
Lock Status
Locked
Locked
Locked
Frequency
22 MHz
29 MHz
36 MHz
Symbol Rate
5120 KSym/sec
5120 KSym/sec
5120 KSym/sec
Power Level
45.000 dBmV
45.000 dBmV
45.000 dBmV
Modulation
64 QAM
64 QAM
64 QAM
Channel ID
3
2
1

 

 

System Software Version

DOCSIS Software Version: dpc3939b-v303r2042151-140714a-CMCST
Software Image Name: dpc3939b-v303r2042151-140714a-CMCST.p7b
Advanced Services: USG-Adv-1.0

 

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3 REPLIES 3
Trusted Forum Contributor

Re: Internet down daily in afternoon at Coral Gables, FL ( 33134 )

Sounds like you may be seeing some node congestion, or an issue with the local Comcast plant, but it's very hard to say. Do you remember if any of the techs called out a line technician? If not, I'd encourage you to reach out to Comcast to get one out there as they'll be able to see and do more then the standard techs. 

 

Though, I'd recommend you reach out to Comcast in a different way as the 800 number isn't going to get you places. Try reaching out to @ComcastMike to see if he can help you. Chances are he'll have someone from escalations call you the same day. 

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New Member

Re: Internet down daily in afternoon at Coral Gables, FL ( 33134 )

Do you have a direct contact to reach @ComcastMike ?
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Trusted Forum Contributor

Re: Internet down daily in afternoon at Coral Gables, FL ( 33134 )

That's in reference to his Twitter account. https://twitter.com/comcastmike If you Tweet him asking for assistance he should follow you which will allow you to PM him your account number so that he can have escalations call you.

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