Internet issues - removing all splitters?

[TWCnooooo]

• Hey all, so I live in an older Los Angeles home with a bunch of old coax and splitters etc. I only use 1 coax line for the cable modem, no TV/phone or secondary modems. All the splitters and accompanying coax is underneath the house in a small crawl space.
• I've been having issues especially since getting bumped up to 100mb/s from 20mb/s. Internet slowed down after 'upgrade,' then no connection for a day (support said the line must have been cut somewhere,) and now today it is on and off every 10 seconds.
• So my question is, can I remove all splitters and run the coax directly to the modem from the initial coax + ground from the pole? Is there some sort of amplifier that should be installed between the initial coax line and the modem? Any issues I need to worry about other than using quality RG6 and making good connections?

bullet's cause i dont know how to do paragraph breaks sorry!

 

[raf051888]

Do you know anything about your hardware? A make and model on your modem or modem / router combo?

 

[TWCnooooo]

Netgear CG3000 DV2 Docis 3.0 combo modem + wifi router

 

[TWCnooooo]

Here are the 3 event logs from today.

• Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=c4:04:15:b6:2f:d1;CMTS-MAC=00:01:5c:68:0e:4b;CM-QOS=1.1;CM-VER=3.0;
• Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=c4:04:15:b6:2f:d1;CMTS-MAC=00:01:5c:68:0e:4b;CM-QOS=1.1;CM-VER=3.0;
• SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=c4:04:15:b6:2f:d1;CMTS-MAC=00:01:5c:68:0e:4b;CM-QOS=1.1;CM-VER=3.0;

 

[TWCnooooo]

i think these are the signals?

 

[Fardringle]

If you can get a direct cable to the modem without any splitters, that is definitely preferable. If you absolutely must use splitters, make sure they are good quality and the correct rating(s) for the cable company's specifications.

 

[TWCnooooo]

If you can get a direct cable to the modem without any splitters, that is definitely preferable. If you absolutely must use splitters, make sure they are good quality and the correct rating(s) for the cable company's specifications.

cool thanks, no splitters needed so i'll just run a new coax direct to modem... hopefully that removes the bottleneck. i think we can call this solved if a mod wants to close the thread?

 

[alkemyst]

I had these issues. The previous homeowner(s) decided to add coax with the biggest splitters they could.

I took out like 10 splitters for a simple house.

I replaced that with a 2 way split with one going to my modem and the other to the CATV. That was solved with a 4 way splitter.

 

[ch33zw1z]

Yes, remove all the splitters if they're not required. If you have to add one in later, then keep the modem off the first split.

If you keep having problems, call the Telco. My house had a "filter" on the line at the box(according to the Comcast Tech) that was hosing my Internet connection when we first moved in.

 

[bruceb]

With cable internet, always connect the internet modem as close as possible to cable point of entrance. Always use a high quality digital capable splitter (ask cable company which one they use or have them provide it). Cable should go into the splitter, then out to Modem and the other output to your TV boxes. Never install the modem after multiple splitters or you will have performance issues.

 

[aigomorla]

• Hey all, so I live in an older Los Angeles home with a bunch of old coax and splitters etc. I only use 1 coax line for the cable modem, no TV/phone or secondary modems. All the splitters and accompanying coax is underneath the house in a small crawl space.
• I've been having issues especially since getting bumped up to 100mb/s from 20mb/s. Internet slowed down after 'upgrade,' then no connection for a day (support said the line must have been cut somewhere,) and now today it is on and off every 10 seconds.
• So my question is, can I remove all splitters and run the coax directly to the modem from the initial coax + ground from the pole? Is there some sort of amplifier that should be installed between the initial coax line and the modem? Any issues I need to worry about other than using quality RG6 and making good connections?

bullet's cause i dont know how to do paragraph breaks sorry!

call twc tech support and have a tech come out to test your signal strength on the cable line.

i had a simular issue like yours, a tech came out and found out a mouse chewed though the coax.

the service is free, and as long as the problem isnt on the pole, they will fix it by rolling a new coax.
Also it helps to check your modem logs to see your uncorrectable count and signal strength.

once again, it could be a mouse or some other rodent, as i live in the same area as you, that chewed though your line.