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+--- Thread: Solution Idea - No Audio from others ( LONG READ ) (/showthread.php?tid=395)
Solution Idea - No Audio from others ( LONG READ ) - Moncee - 04-15-2020
Hi Jammers.
I've been troubleshooting for a week now, but I have found a solution for one specific scenario, that causes you not to hear others in a JK session. I have seen some of you are not able to jam, despite you have set up everything right (Port forwarding, Firewall...etc) so I share this... might worth a look.
Symptoms:
- JK installed, Gear properly set up, Latency fine, ready to jam
- Port forwarding or UPnP is set on your Internet facing router, and Firewall is set correctly ( JK is allowed to pass through )
- When Joining a session, you do not hear others, and they are "greyed out", occasionally you hear only 1 person, but that is very random
Possible Solution:
- Check your Router. What is your IP address that you are getting from your ISP ( Internet Service Provider)
- Now check what the "internet" sees about your IP address. Go to a page that displays your IP address.
( just google "port checker", or go to https://portchecker.co/ or https://www.yougetsignal.com/tools/open-ports/)
[See attached Picture] - Cannot attach Picture, so just believe me... the router shows different IP, than the Portchecker site.
FB Link: https://www.facebook.com/photo.php?fbid=10213614239390306&set=gm.1579925448832148&type=3&eid=ARDex6mknf2fD6tXofwuEoSOAFYaNJVnYL1HvCnP3uxR9igYffIrwakw64VQFDc6U-jwRkbd0CxdjdHE&ifg=1
If the 2 IP addresses are different then THAT IS an issue.
Okay then what now?
[TL : DR] Call your ISP call-center, and ask for a Public IP address.
Technical mumbo-jumbo:
It might happen that you are behind a CG-NAT (https://en.wikipedia.org/wiki/Carrier-grade_NAThttps://en.wikipedia.org/wiki/Carrier-grade_NAT)
Simplified, that means, that your router is behind another router, but that is in control of your ISP.
So whatever you set on your router (portforward, firewall... Etc) will not be enough, as the ISP's router (that does another Network Address Translation ) will block JK traffic, as ports will not be "forwarded".
Why does my ISP do this to me...???
Most people does not need a public IP address, as they do not use services that require one. You are not publi$ng any services as a generic user, but in our case JamKazam needs to access certain ports ( UDP 12000-> ) to be in "listening" mode, therefore we need a "real internet facing, public IP" ( it does not have to be a Fixed IP, only a publicIP )
The ISP saves public IP addresses by putting the many users behind one public IP using CG-NAT, some might not even notice it.
So call your ISP, and ask if (and how) can you acquire a public IP .
If they grant it to you, you'll need to reboot your router (to get the new IP ), then check again if your ISP provided IP and the one the "internet sees" is the same.
If they are then you are good to go, if you set JK and your OWN router right, you should be able to Jam properly with others.
That was my story, since yesterday, I am a happy jammer as well...