john987's profile

New Poster

 • 

1 Message

Wed, Jul 1, 2020 1:00 AM

URGENT: VPN not working

VPN was working until a few days ago when I restarted my comcast box. I need VPN to connect to my computer at work however ever since the restart, VPN fails to connect. I can connect to my work VPN from home just fine using mobile hotspot from my TMobile phone however I would like to use my WiFi for this. Following is some more information:

 

Network infrastructure: Arris TG1682G

 

What I have tried:

1. Called Comcast customer service: the recording never lets me speak to tech. support since it keeps triggering a modem reset promising me it'll let me talk to a real person after the reset. I have lost count of the number of reset loops I have been put through.

2. I am using Windows 10 and have switched off all firewalls. It is not an issue on my end since everything works fine with my phone's hotspot as I mentioned earlier.

3. Disabled xFi Advanced Security.

 

And yes, I have read https://www.xfinity.com/support/articles/using-a-vpn-connection.

Responses

Regular Visitor

 • 

4 Messages

1 y ago

Ok, I fixed it. Don't completely understand why, but it's working now.

What did I do:

 

1. Use my own router, (make sure that your primary PC uses this router)

2. Enable bridge mode on my Xfi box

3. Change the router IP address from 10.0.0.0. to 192.168.0.1

4. Add a port to the XFI box: port 1723 and select TCP

 

I'm not sure if all four things are needed, but it solved my issue

New Poster

 • 

1 Message

1 y ago

Hi,

 

Can you please elaborate on Step 4?

 

4. Add a port to the XFI box: port 1723 and select TCP

 

Is this a port forward? I'm dealing with the same VPN issue.

 

Thanks,

New Poster

 • 

1 Message

1 y ago

I think step 4 did the trick. I use the Xfinity wireless gateway as my router with multiple access points in the bridge mode. All use the same WIFI SSID. When my laptop is connected to the Xfinity gateway, VPN is blocked. VPN works when I am connected to an access point.

Visitor

 • 

2 Messages

3 m ago

If you use a service like nordvpn, they have the option to connect to "obfuscated servers"  which oftentimes the internet service provider will not identify as a VPN connection. I do realize this is just a temporary fix though because eventually the obfuscated routes can become identified. Your best bet as one of the earlier users mentioned is getting your own hardware and if you can't do that it looks like you're maybe stuck. However If you are that intent on self-managing your own network, and you have limited options as far as switching operating systems or buying an expensive piece of hardware that works in conjunction with Xfinity connections, might I offer an additional solution.

Windows 10 is a terrible operating system to use if you're looking to self manage your network, even just on a LAN level. Firewall software that Windows provides is geared to minimal user interaction as there are super user rules that you can't even change as an administrator on the system with Windows 10. This is all done to allow Microsoft the ability to connect to your system for the purposes of gathering telemetry, etc. And while I have heard it's possible to minimize the amount of super user connectivity that Microsoft allots itself within the operating system, it takes an actual superuser, ie someone very skilled and adept with the nuances of the Microsoft operating system, the registry and the different policies in place, to be able to actually minimize this risk on a system and I don't think it's possible to completely turn off which is why it's difficult to manage your own network with a Windows 10 operating system. An actual super user, that is someone who had the skills and abilities to do that on their own system, would realize how infeasible it is and just switch systems.

Linux and your own equipment is your best bet obviously, however it might not be feasible for you to make that sort of leap. It would cost you a couple of bucks but I did it and it works great with Windows systems... buy a raspberry pi. Raspberry pis can be modified in many different ways one of them being a access point or Wi-Fi repeater. Connect the raspberry pi to the Comcast gateway, and make the raspberry pi your new wireless access point. Then you can manage the entire network and the DNS servers you are connecting to from the raspberry pi instead of from your Windows system or from the Comcast gateway. The VPN connection can then be applied through the raspberry pi access point. Granted this solution may not be the best, it will degrade the speed of your connection a bit. However if you I have direct access to the administrator panel for the Xfinity connection, connect the raspberry pi, and put the gateway in bridge mode, no Wi-Fi signal will be broadcast from it, and you can maximize your connection speed that way. Good luck. 

EG

Expert

 • 

89.2K Messages

@Dyiguy1234

Thank you for your contribution ! Re-closing this year-old dead thread that was improperly re-opened by the new forum software / platform. A known issue that is being worked on. 

I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Please mark an Accepted Answer!tick

New to the Community?

Start Here