Internet dropping every day/other day

I do not see Downstream Power levels or SNR etc numbers when I access http://10.0.0.1 
The options I have are 
Gateway
Connected Devices
Parental Control
Advanced
Troubleshooting
Logs
Diagnostic Tools
Wi-Fi Spectrum Analyzer
MoCA Diagnostics
Reset/Restore Gateway
Change Password

Cisco Model:DPC3941T
Here is the only entry from the logs

Event Logs

See if this still applies;

Once you log in, and are at the main screen, you will need to select the dropdown menu for Connection under Gateway. Then select XFINITY Network. Scroll down to find the downstream power, the SNR, and the upstream power information.

Thanks.

Both the upstream and the downstream power levels are marginal to being out of spec, and they may be intermittently fluctuating even farther to out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In an effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold colored garbage from Home Depot, Target, Wal-Mart, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, abrasions, kinks, sharp bends, etc.

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.

Good luck with it !

Thanks for the reply.
No splitters involved, straight from wall to modem, out from modem to Deco mesh.
I will replace the coax from the wall to the gateway and see if that helps.

Quite welcome ! If there is nothing more that can be done to improve the connection quality, then you'll need a tech visit as stated. 

Bear in mind that if the premises facing techs can not find or fix a problem at your home, it is they who are responsible for escalating it to their line / network / maintenance dept. techs. The problem may lie beyond your home in the local neighborhood infrastructure somewhere but it is their S.O.P. to start at the home. And if the problem is found to be on their side of the demarcation point, there will not be any charge.

Good luck !

One last thing, when you say the upstream and the downstream power levels are marginal what range should they be in?

Thanks

@user_5992f1 

Here are the desired signal stat ranges from the pinned "Internet Troubleshooting Tips" topic that resides at the top of this help board.

So there is no spec for downstream power level and my upstream power level is in the 49 to 51 range where spec says 35dBmV to 50BmV.
I should be telling the tech that the upstream power level is the issue?

The downstream power levels are in lines two and three;