2 Messages
I can no longer connect to my work's VPN through XFinity
I work from home connected to my company's VPN. As of February 18, I have been unable to connect to the VPN through XFinity as I always did.
I tested by disconnecting the Wi-Fi and connecting through my cell phone's hotspot (AT&T) and it connects without problems. When I go back to XFinity, I can't connect again.
I restarted the router several times, left it off for several minutes and nothing worked. Everything works, except for the VPN that I can't connect to anymore.
I had exactly this problem months ago, but it only lasted two days and then it started working normally again. At that time, I managed to open a ticket with XFinity, but I haven't been able to check it anymore, so I don't know if they did anything.
Today, I can't open a ticket anymore, I keep going around in the chat with the AI without being able to get to the point.
My internet is residential, I use the XFinity XB7 gateway (modem + router).
I tried disabling the modem's firewall and that didn't work either.
I'm using FortClient (FortNet VPN) and I can ping the VPN address, packets are sent and received, but I cannot connect through the VPN client on XFinity connection.
I believe XFinity is blocking the port, but it's not on the modem.
Can you help me, please? I need this to work and I can't use my cell phone's hotspot all the time.
Thanks
XfinityEva
Official Employee
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1.6K Messages
2 months ago
Hello there! Thank you so much for taking the time to reach out and provide the details of what you have tried so far. Here are a few things we can check (you may have gone through a few of these already)
Note: Network Engineers have verified that port 443 does not get blocked. See the list of blocked Internet ports.
- Comcast gateway devices' IP networks are defaulted with Gateway Address 10.0.0.1, which means the DHCP addresses available range from 10.0.0.2 to 10.0.0.254.
Most Client VPN software that companies will give their teleworker employees will utilize a 192 DHCP "range."
This means that, unless the router settings are manually changed, you will not be able to connect to the VPN. You should verify all settings and work with your IT to set up this connection. If needed, we can provide a few additional steps of guidance.
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user_0hqv3i
2 Messages
2 months ago
Hi, thanks for replying!
I have checked all the points mentioned, but I still have the problem.
The Internet works without problems on all devices.
The firewall is set to Low.
Firmware updated.
I can ping the VPN address:
Firing veste.fortiddns.com [189.126.207.42] with 32 bytes of data:
Reply from 189.126.207.42: bytes=32 time=144ms TTL=237
Reply from 189.126.207.42: bytes=32 time=144ms TTL=237
Reply from 189.126.207.42: bytes=32 time=149ms TTL=237
Reply from 189.126.207.42: bytes=32 time=143ms TTL=237
Ping Statistics for 189.126.207.42: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate a round number of times in milliseconds:
Minimum = 143ms, Maximum = 149ms, Average = 145ms
This is the VPN address:
https://veste.fortiddns.com:10443
Port: 10443
When I use the Internet of my cellphone hotspot (not XFinity) I can connect. When I come back to Xfinity the VPN client shows message "the server is unreachable.".
I talked to the network engineers at my company and they told me that if I connect to the VPN through my cell phone hotspot and I don't connect through XFinity, it is because there is some blocking on XFinity.
Can you check if there is any blocking on this address or port, please?
Thank you.
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bbunch67
Visitor
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3 Messages
1 month ago
Posting my resolution in case it helps others -- I ran into a similar problem 3 months ago where my VPN connection (via HP/Aruba device) suddenly kept dropping about every 5 mins. It would then work fine again for a couple of days, then the dropping problem would re-occur. I tried a replacement HP/Aruba VPN device, and problem continued (interestingly, GlobalProtect VPN would work, which is a software-based alternate option for me, but more of a hassle to use).
I thought the issue might be my modem, a Motorola MB7621 (DOCSIS 3.0) used for 3-4 years, so I replaced it with a Hitron CODA56 (DOCSIS 3.1). All seemed well for a day, then the same problem re-occurred. I ended up swapping that out as well for a Netgear Nighthawk CM2500 (DOCSIS 3.1) and the HP/Aruba VPN has worked great since, going on 3 weeks now with no dropping. I wish I could explain the 'why' on this...only thing I could surmise is the firmware/provisioning for this particular modem is fully compatible with VPN on Xfinity's network in my area.
(edited)
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user_vtl0jt
1 Message
29 days ago
I am also having the same problem connecting my work Aruba. I just upgraded from an XFinity XB7 gateway to XB8 requested by Xfinity. I have no problem when using the XB7. With this new XB8, all devices work just fine except my Aruba work router. I contacted the work's IT and they said this is a known problem with Xfinity and Xfinity is currently working a patch to get this fix.
Is this correct? Any suggestion? Meanwhile, I am using Global Connect to access my work's server but it drops every few hours.
Thanks
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