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Solved
C6300 firmware update
I discovered that my R6300 Modem/Router is in need of a firmware update. By all accounts I can not do this myself in the usual fashion and everything I am reading says that my ISP must do the update....
@Belcantor Looks like the issue you have is a minor bug that has been fixed and will be available in next FW release once Comcast has approved it and pushes it out. In the meantime there is a work around you can use to address. So in order to avoid issues with DNS you need to make sure all 3 DNS fields are filled out.
Workaround for C6300 Minor DNS Bug:
1. Log into your C6300
2. Go to Advanced > Setup > Internet Setup
3. On Internet Setup page select Use these DNS Servers.
4. Fill in Primary, Secondary and Tertiary DNS server boxes.
5. For Primary and Secondary DNS use Comcast DNS and for Tertiary either copy the 2nd DNS server to it or use 8.8.8.8 or 8.8.4.4 or 1.1.1.1 or 1.0.0.1. For best performance and security you probably want to use the Cloud Flare DNS 1.1.1.1 or 1.0.0.1
6. Once all the DNS settings have been specified click apply and you should be good to go.
PS: If you need more info on 1.1.1.1 and 1.0.0.1 DNSs you can see it here https://1.1.1.1/
So I guess what you are saying is there is no way you can guarantee your equipment will be updated when needed and if I buy a cable modem/router through a retailer it could potentially be working on a subpar level within months because you can't guarantee firmware updates. So I gather I should then buy all my cable internet equipment from my ISP so I know it will be working and not have to be replaced every 12 - 18 months. That is good to know. Would have been better to have the information before I went to a retailer and dropped around $150 on your product. Perhaps Netgear should post that warning prominently on their box so consumers are aware. But then that might hurt sales. Or better yet, work on a way to distribute updates on 100% of their equipment.
You won't ever have to worry about me buying a piece of your equipment again. I know now to always get my cable internet equipment through my local ISP.
@fearandloath The point here is that if a modem router manufacturer like Arris, Netgear, Motorola, Cisco and etc. fixes issues and provides new FW to ISP you can pretty much guarantee the big 3 ISPs Comcast, Spectrum and Cox will push that firmware to customers. Comcast is usually the fastest to roll out the updates. For smaller ISPs there is no way for manufacturers to have control of what those ISPs do and if they choose to push updates or not that’s just the nature of it. You got to be naive to think that ISPs have to do what other companies tell them they need to do.
If there is anything to take away from this thread other than the work around provided is that the firmware updates on Cable products are different as customers cannot update their own firmware ISPs have push it to their devices (i.e. load it to the TFTP Server) as this is what is mandated by Cable Labs and DOCSIS standard.
As far as buying a retail modem or renting one goes each has its advantages and disadvantages. We have ability to choose what works best for us as a consumer. Advantage of having your own cable modem or gateway is that you don’t have to continue to pay the ISP on monthly basis and overall you get better performing hardware than the cheap low end devices the ISPs give.
I have Cox cable and was trying to troubleshoot an issue and noticed my firmware was v2.01.14 so called to have then push an update and they responded that since its a consumer modem they do not push firmware updates. So stuck between Netgear saying the ISP and the ISP saying they don't do that.... awesome....
I feel your pain Jake. I was back and forth with my cable company and Netgear for three weeks and as I'm sure you've read i got absolutely nowhere. I had to break down and buy a modem/router from my cable company. I figured at least I kew it would stay updated unlike my rather expensive store bought Netgear. Most small cable companies have this same policy. So unless you live in an area with service provided by a major cable company you will not have updated equipment. And until Netgear can provide 100% guaranteed update service they should put a notice on their boxes. But of course that will cost them sales so they won't. Good luck with your issue Jake!