Broadband forum: Time Warner Cable RoadRunner 10mb/s slow speeds 600kb/s

by: march9n November 11, 2009 3:13 AM PST

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Time Warner Cable RoadRunner 10mb/s slow speeds 600kb/s

by march9n - 11/11/09 3:13 AM

Hi everyone,

I got big problem, I have Time Warner Cable RoadRunner High Speed Internet Standard 10mbs service in my house (Riverside Ca.) and getting very poor speeds of 400kb/s to 1mb/s down & 550 kb/s up.

TWC Service and Maintenance Techs are speculating it might be rare electrical problem at house causing dramatic drop off in speeds. Here’s a run down of what they checked:


11/09
1) Service Tech from TWC came and checked line signal levels from cable, checked good.

2) Checked modem updated firmware, verified with three different modems including his laptop w built in modem, speeds checked equal with all setups around 650kb/s down & 750 kb/s up same as my PC.

3) Bypassed all splitters making a direct run from drop line coming outside of the house to my router directly. Same nothing…

4) On driveway of my house Service Tech opened a Pedestal were a outside cable comes from nearby amplifier and checked signal levels, levels on his meter showed they were off.

Tech called Maintenance

1) Maintenance opened amplifier verified all signals with his meter, checked good.

2) Maintenance decided to check internet speeds from his laptop using my modem directly from amplifier connection using power from his trucks generator. Speedtest.net showed 21.85 mb/s down & 1.4 mb/s up …excellent!

3) On the other end he checked (pedestal on my driveway) checked speeds the same way, (from cable coming from amp). Speedtest.net showed a big drop off lowly 1.38mb/s down & 700 kb/s up.

4)Maintenance proceeded to replace faceplate (Connection device) from cable coming from amplifier w new one (claiming device can short out from indirect current running through house cable, which can be caused by faulty electrical wiring in house, i.e. back feeding neutral and such etc... He suggested might need Edison to check line outside and electrician inside.

After replacement of faceplate connecting device, checked speeds again from laptop/modem/generator, Speedtest.net show 19.7 mb/s down & 1mb/s up excellent! (proof device shorted out)

5) In pedestal connected back my cable line to the new faceplate connector using another port and rechecked speeds using laptop/modem/generator. Speedtest.net showed a drop off from 19 mb/s down to 8.3 mb/s down.

(Maintenance stated connection of my drop cable running from house was causing other ports to drop off speed. Again, claiming a probable bad current or signal caused from faulty wiring, and that if this is the case faceplate connection device in pedestal could short out again and soon.)

6) Maintenance proceeded to check speeds on the other end of the drop cable (coming out of the ground to house) using Laptop/modem/generator. Speedtest.net showed another drop from 8.3mb/s down 830 kb/s up (from Pedestal) to 5mb/s down & 879kb/s up.

Maintenance requested drop cable replacement to be done in next 36 hours and left.

7)Service Tech and I proceeded to check speeds in my room (hoping for at least 5mb/s speed like end of drop cable ) Not a chance 400kb/s to 600kb/s down & 539kb/s up.

8) last check Service Tech connected a straight cable run from pedestal connection (bypassing bad drop cable) straight to my modem in my room *using power from house. Speedtest.net showed 600 kb/s down 540kb/s up…bad speeds. It’s looking like an electrical problem.

What’s up with that! Can anybody help or had similar problems with electrical power in house dropping internet cable speeds?

I have electrical experience, Your input might help out diagnosing issue

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