Ye but thats the thing.. You dont need to do anything, I have a Verizon Moto Z Force, connected to the awesomely slow German mobile phone network (O2, worse you cannot get), Wifi tethered, no problem, instantly working.

Did you tried USB tethering already? Phone attached to computer with USB? Is there some security software running on the phone?

If yes then I am out if suggestions. Oh, try a phone of a friend. Maybe some other network. Narrowing down the problem is nice to do.

I'm trying the usb tethering now that was a good idea lets see.

theblackrabbi is online at:
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try and join again i have it back up...able to create a server...just not sure if anyone can join

Quote from theblackrabbi :

try and join again i have it back up...able to create a server...just not sure if anyone can join

Maybe try to join other servers then

Quote from theblackrabbi :

able to create a server

Sigh..

Also had the same problem with the internet from the mobile phone.

take a look at this : https://drive.google.com/open?id=0B2kzEkIoKsA7NzM5VGZrUlFyZ3M

and this : https://drive.google.com/open?id=0B2kzEkIoKsA7S2pDVkN6ckFWNUE

first it stops at "Waiting for guest info" then the UDP STUFF CAME OUT, its for all the server. please help

USB tethering.. Although I really do not like to promote mobile network usage. It sucks monkey balls.

Are you guys tethering off of iPhone or Android?

If Android, try something like PdaNet (installed on PC & Device) at lvl 1 or 2 in settings on PC

Another thing you can try is to connect to a VPN beforehand and see if it helps, try something like Windscribe.
I'm not sure if VPN's are allowed, but it did help me before on other games back in 2010 & 2011, so it's just a suggestion.