My cable internet goes out during the day but is fine when weather is cool. Do I need to rewire house?

doitmyself: My cable internet goes out during the day but is fine when weather is cool. Do I need to rewire house?
When weather is less than app. 80 degrees I have internet service. When it gets hot I lose service. The cable company installed it on the eave of the roof, but laid the 75 ohm cable across the roof. I moved the cable so that it no longer ran across the roof and gained another couple of hours during the day of connection time.

One of the contractors they sent said that if we could use the outdoor cabling the company uses we would probably be fine, but the company won’t allow them to use it indoors.

Since we have no crawl space to run wires. Do they make heat resistant 75 ohm cabling? Or can I increase the signal to the cable modem with an amplifier. The cable company hasn’t offered any options except drilling through the walls, which really won’t help. I have 3 TV’s and my cable modem. TV pictures are fine. Internet service works great when it is up and running.

Any ideas?
Internet service goes down when sun is shining and above 80 degrees. ISP has been out and says house need to be rewired with new RG6 cable. I rerouted their installation so that 50′ of app.350′ of outside cable was no longer laying on roof of house (took 50′ off roof and ran that through eave of house and now I get about 2 more hours of internet service each day – TV service is always fine). ISP has checked signal coming to house from pole and says it is sufficient. They last guy out said that heat was a factor. I asked about a signal booster and they said they didn’t like to do that, but I have a friend who said they installed one for him. I think the run from the pole to the house is too long and since it is in full sun all day much of the signal is lost before it gets to me. I need someone with technical expertise to explain what’s happening. Does anyone have any ideas? Do you know of a cable from high heat installations? What kind of booster can I get to install in the house?
We can’t drill through wall because there are 3 TV’s and internet service in different rooms to they have to go throughout the house. Drilling would only bring it into one room.

Answers and Views:

Answer by idontkno1#
you might need new breakers

Answer by fr_chuck
have you had them check the signal strengh at the point it comes into the house during those hot periods to see if the signal is strong enough comming to the house, and not a problem at a tranfer box someone down the road in the heat, or getting really busy at those times.

Next why not let them drill though the wall and run it right into the house ? or if you need heavier cable, go and buy heavier cable

Answer by friend to all
Had the same problem with DSL when raining. I had an exposed wire. Sounds like you may have the same.

Answer by robertptolemy
it might not look pretty but try wrapping the cable in tin foil.

Or get a length of pcv pipe and run the cable through that.