Hey everyone, longtime lurker, first time poster
I'm in San Jose, California with Comcast Business Class on the old 27/7 plan. I'm using an SMC D3G cable modem.
Over the last several weeks I've noticed that my connection is dropping at night for a few minutes at a time, then it comes back. I started using the tool at »
SMC D3G Logging tool to keep track of my signal, and found that my downstream SNR will intermittently drop really low (less than 25) and then my connection drops. What's odd is that these SNR drops only occur at night - during the day my connection is rock solid. You can see my last two days of signal data here:
»
docs.google.com/spreadsh ··· /pubhtmlTimes where this happened are 8/15/2014 0:56:10, 8/15/2014 1:47:51, 8/15/2014 2:29:21, 8/15/2014 3:17:57, 8/15/2014 20:54:43, 8/15/2014 21:34:12, and 8/16/2014 20:11:45. You can see that the rest of the time my downstream SNR stays right around 35.
In the past I've had issues with squirrels chewing through the cables on the utility pole, and Comcast has come out to replace that cabling before. To me it doesn't seem likely that that would be the problem this time since the issue is intermittent - I would expect a damaged cable to give me a low SNR all the time.
I also considered that my cable modem might be failing since I've had the same one for 4+ years, but if that was the case I would expect this problem to be completely random instead of only happening at night time.
Any thoughts? I haven't called Comcast yet because it just seems like such an odd problem - I don't want to pay for a tech to come out if they won't be able to find anything wrong and won't be able to fix the problem.
Thanks!