Gkain wrote:
The cable comes from the pole to a 3 way splitter. From there it goes to the x1 dvr box which then has a splitter to the modem. The second line of the main splitter goea to a stb. The third line of the main splitter goes to a stb and gets split again to the last stb.
Hope this helps
There's your problem, your system is wired incorrectly. Way too many splitters. Depending on your incoming signal strength, you may need a Comcast zero gain amp to replace the 3 way splitter and home run all the cables to that point. If you don't think you can tackle that yourself you should get a tech on site.