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Server Troubleshooting

Table of contents

Servers - Public

Why doesn’t my server show up in the list? Why isn’t it registering?

If you are registered OK (you can see it here) and you or your friends can’t see your server, you may need to wait, or start your client with the --showallservers option and try connecting from there (see command line options) on how to start your client with a config option).

If you are seeing a message that says the server is full, please see this note on Directory Servers.

You can verify that your server is listed in the relevant genre by checking it here.

Servers - Private

I’m running my client on the same machine/network as my server but I can’t connect to it

Connect your client to (or localhost if that works for you). If you’re running the client on a different machine to the server but on the same network, then connect to the local network address of the server. Do not connect via the server’s public (WAN) address.

What address do I give to people so that they can connect to my server?

This should be your public IP address (find that with Google). Connect your own Jamulus client to the local IP address of your server ( if it’s on the same machine as your client). Note that your public IP address can change - see the note on “dynamic DNS” in this guide.

What port numbers can I use?

You can set your server to listen on a custom port with the --port option. If you do this, you will need to tell people which port to connect on. They will need to append the port number to the address of your server in the format [serverAddress]:[portNumber].

Is a private server a direct server without contact to the Jamulus Directory Server?

Yes. Please see Server Types

Can I convert my private server to being a public one?

Yes. Simply check the “Make my Server Public” box in the server window and fill out the details. If you register your server, do not use port forwarding as it may prevent others using your server.

Headless Linux: I have created a server but it is joining the Directory Server and I don’t want it to.

To enable a private server, do not use the --directoryserver (-e) option when starting your server command line.

Nobody can connect to my server - but I can connect locally

Some ISPs are using techniques like Address plus Port (A+P) or Carrier-grade NAT (CGN) to conserve address space. This makes it impossible to host services like Jamulus at home (and may mean you also cannot see server lists in your client, or you may be missing some specific servers).

To detect if CGN is the issue, go to your router’s configuration screen (typically, 192.168.X.X) and look at the WAN Status page. If your listed IPv4 address does not match with the address you see here, then this means CGN may be enabled. Or if you experience problems such as being unable to connect to servers or an empty server list this may also be an indicator that your ISP is the problem too.

To fix the issue: if you are running a public server, try port forwarding. If you are running a private server and are port forwarding already, contact your ISP support and request them to remove you from CGN and assign you a real WAN IP address because you want to host a server. If CGN is not the issue, you may need to ask your ISP to give you a WAN IP address (or fixed one to avoid using DDNS, if possible). If all else fails, consider hosting on a cloud platform (some providers do free trial periods).

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