I am trying to connect a tmobile cellspot and need ports udp123,500 and 4500 open. It seems 123 and 500 are open but 4500 is not. How do i fix this? On comcast

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I am trying to connect a tmobile cellspot and need ports udp123,500 and 4500 open. It seems 123 and 500 are open but 4500 is not. How do i fix this? On comcast

asked by Ronn B. on 2/24/16

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Jason B. [PortForward Rep] · Answer 1 · 2016-02-25T09:01Z

Jason B. [PortForward Rep]

on 2/25/16

There are a lot of things that could be wrong. I wonder if 4500 needs to be TCP instead of UDP. If your router supports it try opening both of them up.

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