Hi,

Thanks Gary. A Comcast tech came to test the line inside my home. The tech performed a few tests with some handheld instrument and claimed that everything was fine.

More importantly, he said that in his 4-5 years of experience that usually when there is a problem like the one I described it's with a customer supplied modem. The two modems that I tried were a Netgear CM600 (that I purchased in April 2016) and an Arris SB6183 (that I purchased last Wednesday).

Furthermore, he stated that Comcast modems (the X1 modem I had last year was made by Arris) had moved beyond DOCIS 3.0 to 3.2. And, retail modems pull (the signal?) from the wall outlet and Comcast modems pull from the tap. He offered to let me try another Comcast modem. I declined. I declined the modem not because I didn't think it would work but because I thought it was the point of the out-of-the-blue problems I had.

Has anyone had the same experience?

Before the tech arrived, I thought the whole experience was a ploy to churn a $50 service fee or a $10 monthly modem rental. After his visit, my opinion remains the same.

I no longer have Comcast. I switched to Uverse even though it's much slower.

Thanks.

PS: I just heard from Arris that they'll still testing 3.1. lol