Visitor
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3 Messages
Ports blocked upstream - no way to fix it
Magically a bunch of open ports are now blocked. I'm a developer. I use those ports. I can't have some corporation randomly turning things off. All the hardware I have access to is still configured correctly and alternative correct configurations are also unable to resolve the issue. The Xfinity router is in bridge mode and port forwarding is correctly configured on my router. Advanced Security is turned off. It had been working and now it's not. Hours of troubleshooting has demonstrated that it's definitely something the corporation did. The failure is somewhere between my router and my server (both of which work fine). How do I make these people provide me with the internet I pay for?
user_h87ex0
Visitor
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3 Messages
23 days ago
Here's further context. I've spent hours of my time dealing with the intentionally useless tech support. Allegedly they were escalating my ticket to national but hours later a robot called trying to schedule a technician to my apartment, a clear indicator that they didn't escalate the issue.
There is an open support ticket [Edited: "Personal Information"].
I am trying to run a personal service from my home network on port 8000. I have confirmed with multiple external tools that my port forwarding is working correctly and that the service is reachable from mobile and other residential networks. It was working FINE until something happened upstream. I have definitively proven that connections are being blocked when they originate from known datacenter IP addresses, specifically from Google Cloud and my web hosting providers. The error is either 'Network is unreachable' or 'Connection refused'.
I am experiencing inbound TCP packet loss on the Xfinity network. I have already performed extensive troubleshooting and can confirm the issue is not with my local equipment.
I can provide traceroute data that shows the packets being dropped inside their network. Specifically at 68.86.177.86
My modem is in bridge mode and my firewall is confirmed open on the needed ports.
A tcpdump on the target server shows zero packets arriving, so the block is upstream from my WAN interface.
The issue is a TCP RST packet being sent from an upstream device, not a connection timeout.
IT'S NOT A PROBLEM MY EQUIPMENT, the problem is upstream packet filtering done at the ISP. This needs to be resolved by a Tier 2 technician or a network engineer who can analyze and control upstream filtering.
This problem prevents me from completing work for a client which will prevent me from getting paid. It needs to be resolved.
I have already filed a complaint with the FCC. The FCC ticket is [Edited: "Personal Information"]
[Edited: "Soliciting"]
(edited)
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XfinityBenjaminM
Official Employee
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2.5K Messages
21 days ago
Hello! Thank you for reaching out to us here on our Community Forum. We also see your Direct Message. In the future, please wait to be invited to send a DM, as it is against our Forums Guidelines to send an Unsolicited Direct Message to an Official Xfinity Employee. We will reply to your DM shortly, but please remember to follow the process going forward.
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