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  1. Port forwarding not working | Xfinity Community Forum

    Jul 14, 2025 · Thanks for a reply. I know how to set it up. This is a common issue among many XFinity users now. Port forwarding used to work, and now it just does not. I tried forwarding …

  2. What is port forwarding and what is it used for? - Super User

    May 16, 2011 · The Basics To really explain port forwarding, you first need to understand a little more about what your router does. Your internet service provider assigns one IP address to …

  3. Port forwarding does not work correctly - Xfinity Community Forum

    Aug 16, 2025 · It does not appear to work correctly. I don't see how it could since it is forwarding a port to the wrong IP address and it shouldn't be opening port xxx to every device on my lan if …

  4. Port forwarding does not work even after opening the ports in …

    Apr 24, 2021 · Port forwarding does not work even after opening the ports in firewall Ask Question Asked 4 years, 6 months ago Modified 4 years, 6 months ago

  5. ANSWERED: How to set up Port Forwarding on your Xfinity Gateway

    Jan 8, 2018 · How does port forwarding work? Similar to a wall in your home, your Wireless Gateway keeps out potentially harmful risks from the internet while opening doors or 'ports' for …

  6. Port Forwarding not actually opening ports | Xfinity Community …

    Mar 7, 2022 · I too cannot seem to get port forwarding to work, this has been happening for over a year now and with our old internet provider (a small local company may I add) had no issues …

  7. Is it possible to access a machine behind a CGNAT (by somehow ...

    Sep 11, 2022 · 4 You could try pwnat. This is an open-source tool that addresses this problem, and whose aim is to allow any number of clients behind NAT to communicate with a server …

  8. Router Will Not Port Forward | Xfinity Community Forum

    Jun 10, 2024 · My router will not port forward. I have done extensive troubleshooting - adding/deleting/re-adding the entry in the app, restarting the router, making sure the device is …

  9. Can't Port Forward - Xfinity Community Forum

    Apr 28, 2023 · One week for complete inaccessibility to port forwarding is a long time for an ISP to take to correct, considering how common port forwarding is for hosting servers and other …

  10. Unable to setup port-forwarding through Dynamic DNS (DDNS)

    Apr 4, 2022 · This partially works for setup 1 (described above), but only locally. Port forwarding does not work in setup 2. Example Router Port Forward Config: Application Name External …