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Many T3, T4 Errors Disrupting My Daytime Work; Unable to Contact Level-3 Support

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Many T3, T4 Errors Disrupting My Daytime Work; Unable to Contact Level-3 Support

My Internet is getting disrupted every day, randomly at any time of the day. During daytime, it negatively affects my job performance. I always see many T3, T4 timeouts and "RCS Partial Service" errors. The call center rep simply offers me endless reset, and asks me to check my modem, LAN, splitters, connectors, wires, etc., that kind of things. But the issue is really on their end. The upstream power levels were nice and clean in the past, and got severely disrupted later, presumably inadvertently making a wire connection from bad to worse on the pole during some kind of work in March/April this year. I'd like to have a technician to inspect the connections (on Comcast poles or taps) but was never successful.

 

This T3, T4 thing is a known issue, widespread being reported over the Internet over the years. Sadly, Comcast does not formulate an effective way to address it (to help user quickly resolve the issue).

 

I have been monitoring my Internet connection very closely for many years. I can tell when Comcast is doing work in my neighborhood because of their inconsiderate disconnection at will at any time of the day, and from the upstream power level disruptions from my modem. An illustration chart is attached.

 

Upstream Power Levels (Before & After) 

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Re: Many T3, T4 Errors Disrupting My Daytime Work; Unable to Contact Level-3 Support

In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.



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Re: Many T3, T4 Errors Disrupting My Daytime Work; Unable to Contact Level-3 Support

Thank EG for the reply and suggestions!

 

But I do not watch or subscribe any video streaming service. There's no extra splitter or combination in my home or outdoor. There's only one cable line straight from my cable modem indoor to outdoor connector to Comcast cable line. There's no network issue.

 

Also, I am an electronics/electrical expert as well as computing expert. As such, as any reasonable troubleshooting or ideas on my end, I have already been done. I have done this for past several years, because the issue is reoccurring.

 

Aslo, I have the personality that do not want to bother others. If something can be done on my end, even though that's someone else cause, I will trey best to resolve it myself by various workarounds.

 

When I post this message, it's really my last resort. I know I have no other choice as Comcast is my only option, and there's nothing else can do. You may get similar feeling in your life on other things. A feeling that you do not have control, and you have tried everything, and you know everything (yes, I am, loud and clear!), and yet you can't do anything for the situation. You can only cry on you life, accetpt as is. 

 

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Re: Many T3, T4 Errors Disrupting My Daytime Work; Unable to Contact Level-3 Support

Then your only recourse is to get a tech out to investigate / correct the problem as was stated.

 

Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it to their line / network / maintenance dept. techs. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. to start at the home.

Good luck with it !

 

 



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!