Visitor
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7 Messages
Verizon 4G LTE Extender Hangs on Connection to Verizon SeGW Server on Xfinity Xfi Home Network
I’m having problems getting a Verizon 4G LTE Extender to work on my Xfinity Xfi Home Network. The 4G LTE Extender box keeps “hanging” on connecting to the Verizon SeGW Server on Port 4500. It connects, but then disconnects and status is “Authorization Failure”. It does this every 15 seconds.
The Extender box, upon startup, goes thru Hardware & Software Initializations, and then connects to my Xfinity Xfi Router/Modem. It then establishes coverage from a multitude/adequate number of GPS Satellites, but then gets “hung” connecting to the Verizon SeGW Server on Port 4500.
I’ve been on the Verizon and Xfinity support lines a “gazillion” times. They each point the “finger” at each other! Verizon says that Xfinity needs to “unlock” certain Ports for this to work. Xfinity says that the required Ports are not blocked. Verizon also says that the 4G LTE Extender is “registered”, so it should have no problem getting into the SeGW Server.
Verizon provided me the following Ports/Settings that are needed to make the Extender work:
Ports:
- UDP 319
- UDP 320
- UDP 500
- UDP 4500
- UDP 52428 + 20906
- TCP/UDP 443 + 80
Other Settings:
- Make sure ESP packets are not blocked by the firewall on the downstream
- Enable high QoS for the Femto (LTE Extender)
- Make sure MTU Size is set to 1448 or higher
- Enable DMZ: recommended. NOT required. Common on most consumer routers.
I talked to Xfinity and they say that all the above should be OK, without any problem.
I tried playing around with the Xfi Router Firewall – doesn’t make a difference. Also, I tried Port Forwarding and Port Triggering for the above Ports and putting the Verizon 4G LTE Extender in the Router DMZ, and none of those solve the problem.
I gotta believe that across the USA that there are many people that have the Verizon 4G LTE Extender working with an Xfinity Xfi Home Network !!
Am I missing something? I also can’t believe that Verizon and/or Xfinity can’t resolve this issue.
Any help from anyone would be much appreciated… Thanks much…
CCJamie
Problem Solver
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322 Messages
2 years ago
@user_ef9871 Thank you for reaching out to us, if you are still having issues with connecting your extender to your Xfinity wireless gateway please send us a direct message with your name and complete service address for assistance.
To send a "Direct Message" to Xfinity Support:
Click "Sign In" if necessary
Click the "Direct Messaging" icon or https://comca.st/3EqVMu7
Click the "New message" (pencil and paper) icon
The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there
- As you are typing a drop-down list appears. Select "Xfinity Support" from that list
- An "Xfinity Support" graphic replaces the "To:" line
Type your message in the text area near the bottom of the window
Press Enter to send it
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EG
Expert
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108.3K Messages
2 years ago
The concern is not "Xfinity Home Security / Devices And Equipment" help related. Topic moved here to the proper help section for assistance.
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EG
Expert
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108.3K Messages
2 years ago
@user_ef9871
No worries ! Disregard those poorly worded sigs. You did post publicly. Yer' good !
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user_78efdf
Visitor
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1 Message
2 years ago
@user_ef9871 Have you been able to get your extender activated and if so, did you just purchase an extender directly from Verizon?
Myself and other forum users have contacted XM support multiple times only to be told that 4g/lte extenders are not supported on XM network which I know is complete [Edited: "Language"] since my Verizon issued extender worked great (4 to 5 bars) on XM’s network for a week or 2 when I first switched to XM. Unfortunately, VZW deactivated my extender once I deactivated my last VZW phone line.
I completely agree that it’s amazing that XM/VZW can’t put a simple process in place to support the activation.
(edited)
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flatlander3
Problem Solver
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1.5K Messages
2 years ago
Just for a sanity check, have you tried something else on the Ethernet ports on your gateway? A few reports of Ethernet ports not working right. If you are on the port with the orange or red stripe and you can't get an IP address with whatever device you plug in, try another port.
Looks like your extender initiates the contact, so you really shouldn't even need to blow holes in your firewall for it. Default pass rule should allow that. Another quick thing is if you have "advanced security" turned on, try disabling that with the phone app. Xfinity gear is super buggy.
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