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Cannot view upstream port 80 websites

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Regular Visitor

Re: Cannot view upstream port 80 websites

Figured it out! My issue was Windows Media sharing blocking port 80 for whatever reason. I use it to access videos from my computer on some of the rokus in the house. Disabled that, restarted everything, and totally back online.
Gold Problem Solver

Re: Cannot view upstream port 80 websites


@Rscar wrote: ... is Comcast known to block port 80 in the event of data overage?

All I know is that sometimes customers have been able to clear the block by responding to a message in their "My Account" pages. Here's one example: https://forums.xfinity.com/t5/Internet-Archive/DOCSIS-3-1-and-Terabyte-data-cap-upgrade-block-upstre....

 

As stated, the guessing is that it's a bug in their in-browser notification system, not a deliberate block. But I'm not Comcast, so I have no access to that system, nor any or knowledge of it beyond what I read here in the forums.

 

The "in-browser notification" bug is not the only possible cause, and may not be the most common one. Only a Comcast rep could say for sure what caused the block in any particular case.

Regular Visitor

Re: Cannot view upstream port 80 websites

I do have a usage overage this month, though have had them in the past without service interruption, and also see the "you have been charged $x for an extra 50gb of data." Nothing else is jumping out at me as unordinary - is Comcast known to block port 80 in the event of data overage?
Gold Problem Solver

Re: Cannot view upstream port 80 websites

You might try logging in to https://customer.xfinity.com/ to see if you have a usage overage, copyright, or other message there that you need to respond to. A bug in their in-browser notification system can block http (port 80) traffic.

Regular Visitor

Cannot view upstream port 80 websites

I believe I'm having the same issues as described here: https://forums.xfinity.com/t5/Your-Home-Network/Can-only-browse-HTTPS-SSL-sites-Google-Facebook-not/...

 

Problem: I cannot access some websites from any device, wifi or hardwired to the modem. I've confirmed using portquiz.net that I can talk to port 8080, but not 80.

 

Wondering if it was a bad modem, I bought a new one, which worked for about a day before falling into the server patterns. I can ping and trace route to the failing sites, but cannot see them in browser.

 

I've tried disabling all firewalls, changing DNS, flushing DNS, and of course many many modem/router/device reboots.

 

Any help is greatly appreciated! I was unable send a PM to ComcastJohnN due to parts of the page not populating for whatever reason.