Comcast XFINITY → Re: [Signals] COMCAST said my E2500 router is causing leakage.

I just hooked my router back up so I could see if the settings would change and I attached a pic.

Internet is upstairs and cable tv service is upstairs and downstairs. On one side of the house is the cable box. On the other side of the house is my breaker. Years ago comcast had to hook the wires up under my roof, from the side where the cable box is to the side where the breaker is because they said CA law requires. BTW, I'm in the Bay Area of California. My apologies for not providing this info in my previous post.

On the outside, there are two splitters. One is a splitter that has one input and four outputs. The other is a splitter with one input and two outputs. I believe the one with one input and two outputs is the one with internet service.

So at this point what do I do? I just hooked the router back up.

I wouldn't do anything. Use your router like you want. It's not causing leakage into Comcast's network. You had idiot techs out to your home.

Hmmm... If they were from CC's *noise police* dept., these guys are typically far from being "idiots"...

"Hmmm... If they were from CC's *noise police* dept., these guys are typically far from being "idiots"..."

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These are the same guys that were going to nuke the service without even knocking on the door and letting me know what was going on. Then I had to tell the guy to check all the cables to make sure they weren't the issue, but he didn't check the one coming from outside. I just don't see how a modem can do this.

This isn't my area of expertise, so I'm not saying they are idiots, but something doesn't sit right with me and I had issues with comcast before.

dup

Leakage was probably their catch all term for ingress...

It's possible a grounding problem with some of the connected electronics which is using the router as a path to the coax ground and is inducing noise on to the coax.

It's also possible if the router is a wireless model, that it's RF transmitter is faulty and causing RF interference directly with the nearby modem or coax.

Either can cause enough interference to enter the cable system to impact OTHER customers.

Most cable companies will install a high pass filter on the line and let the service techs find the noise. Assuming upstream noise. They figure knocking on the door to tell a customer noise is coming from their residence will result in them getting told to get lost. Plus they are probably running noise all day.

This forces the customer to call and let someone in to reconnect service and find whats' causing the noise.

Fortunately for you, you were home and they agreed to "troubleshoot" further.

Ok, so I guess it's just normal procedure for them to do it the way they did it. So, in the mean time what should I do?

This is an electrical code issue. The cable must be grounded to the same ground as the elctrical service, and the cable box must be located there. Sounds like something is out of whack here.

How old is your house? Is your equipment plugged into properly-grounded outlets?

Regardless of what terminology they used, the Comcast guys are looking for ingress into the cable system or egress from it. The former because it messes up their system, the latter because it violates federal regulations. The FCC also checks for the latter, and sends out notices of violations. Here's an example:

»transition.fcc.gov/eb/Fi ··· 5A1.html

So the first step is to get the cable installed correctly, if it is not at present. That means a drop from the pole to the general location of your electrical service, preferable without splices, at which point it get's connected to a ground block which is bonded to the electrical service ground. From there it runs to the cable box (sometimes the ground is inside the cable box.

My drop is underground and it goes from the ped to the back of the house and then it goes inside and back to the front where the electrical panel is. It is grounded at the electric panel.