Frequent disconnect at night

Start with the modem's signal stats. Perhaps they already are, or they are close to being out of spec and intermittently they go completely of spec. Try getting them here http://192.168.100.1 or here http://10.0.0.1 

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

Are these WiFi connections ?

Thanks for the reply EG.  I’ve posted screenshots of the stats.  There are WiFi connections. I have an orbi mesh router attached. WiFi signal seems good

The outages always happen at night and early morning. Everything works great throughout the day.

I don’t know if it’s crazy or just a coincidence but noticed problem when the temperature started getting cooler at night. I don’t know if maybe there a loose connection somewhere outside.

'm having same issues as well as far as i can tell the same issue has happened in my area for several years now ..i'm not saying this could be you but any advice an suggestions i can give ya to help out you i will try ... it seems like its happening on xfinity's side ...Us customers receives the internet service through their company routers ...which is to us customers its known as the DNS servers ...u can see this info  all you have to do is by going to google serch an type  trace my ip an it will give you a webpage of your ip an the local area server  ...also since you bought a Netgear 2050v  make sure it has  docsis 3.1 thats the newest software for modems/routers today.  

Despite the call from someone claiming to be from  “advanced support” reassuring me that the problem was resolved forever the internet cut out again at 9pm. Can almost set a clock by it. Spoke to a helpful Xfinity support guy tonight by telephone who ran some diagnostics remotely and said the signal strength appears to be inadequate and has set up another tech visit.

Everytime I have contacted support they recommended a tech come evaluate. And each time we set up an appointment I get a phone call from Xfinity support just before the visit from someone insisting the problem has been fixed and a tech visit is unnecessary and they continue to spew non-specific jargon until I agree to cancel the visit. So far it seems the purpose of these calls from Xfinity is not to try to resolve the customer issue but simply to have the customer agree to cancel the tech appointment.  I’m not certain the person who calls has any technical knowledge or training, they won’t give any specifics or solutions. As soon as I agree to cancel the visit the phone call is done.

My fellow customer brothers ....your not gonna believe what i have just discovered from all of these isses from our internet provoder ...since they wont tell  us why ..these innteruptions has been caused by them ....xfinity/comcast has been causung the problem all along ...their testing out  new features / protocols  i get all the proof from my xfinity modem an the logs  says an i quote ( Name resolution for the name doh.xfinity.com timed out after none of the configured DNS servers responded.)   the doh in the name resolution  DNS over HTTPS (DoH) is a protocol for performing remote Domain Name System (DNS) resolution via the HTTPS protocol....

to be  honest i could care less what they are doing but the main point is i am sick an tired of them innterupting my service 6 or more times a week ..like i said i could understand of they was doing this once a wekk or once a month but 6 times a week ??  seriously ??  come on now?? 

@user_f869c3 

Regardless of anything else, this needs to be addressed. The upstream power is on the high side and it may be intermittently fluctuating even higher to out of spec levels. 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 Radio Shack, Home Depot, Target, 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, 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 !

Haven’t had any issues for several days. Our next door neighbors were also having lots of internet problems the past few weeks. Whatever Xfinity maintenance did seemed to have fixed the problem in our area.