Port forwading problem. 5g modem trying to host a server

[kzh6919 0]

Hello!

I have a 5g mobile broadband modem and I'm trying to host a server and open a port which I can connect to.
My ISP blocks all incoming ports or something like that (the reason I've subscribed to your service)
I've been following the instructions, on how to reserve and add ports, and use it to redirect requests.
However I simply can't seem to figure it out if I'm doing something wrong or it just isn't possible.
I've seen "old" post with kind of the same problem that was figured out, just doesn't work for me.

EDIT: (I've also tried on a VPS, seems like the ports is closed aswell)


 

Edited ... by kzh6919

[OpenSourcerer 1442]

28 minutes ago, kzh6919 said:

I've seen "old" post with kind of the same problem that was figured out, just doesn't work for me.

Thanks for the link!
 

28 minutes ago, kzh6919 said:

However I simply can't seem to figure it out if I'm doing something wrong or it just isn't possible.

I don't see why it shouldn't work. But you must realize that you didn't give us any info whatsoever to work with. OS? Version? Client and version? Logs? Settings? (Part of the logs)

[kzh6919 0]

Sorry for the vague question.

My problem is: I don't seem to be able to bybass my ISP block and open a port to host a server and receive traffic, even though I've followed the instructions on point (in my belief)

I'm really not a wizard at this 🙂
I'm running on windows 10
EDIT: I'm running on windows 10
My modem is: Huwaei 5g CPE pro 2
Btw thank you for the quick answer, that's a decent community!

Edited ... by kzh6919

[OpenSourcerer 1442]

Keep in mind that Minecraft JE server suffers from multiple problems (if it's even JE you want to host, as, again, you left out this bit of information):

• If you host a server in online-mode behind AirVPN, your server can't connect to various Mojang APIs due to blockades, and so cannot verify names, and so doesn't let anyone connect. online-mode=false is the only cure.
• Minecraft 1.18 at least vigorously refuses to listen on v6 addresses. It worked with 1.15 and 1.16 as far as I can remember but stopped doing so. As you're saying you use GSM, you might not get a public v4 address assigned, which could be that one problem blocking you from hosting it (no port forwarding on your GSM provider's side).
  I spent a good hour playing with -Djava.net.*ipv4*/*ipv6* options to try and force v6, and when I finally did Minecraft itself told me to fck off let me know of an "unsupported socket" or a similar error message.

But then again, JE's problems could just be Microsoft playing out their shitty EEE strategy. They are working on BE for all other platforms except *nix, after all.