Leap motion data proxy

[Batty]

I have one doubt in mind. If there are many devices under same WIFI, then off course they are having same external IP. so, the question is would that be a problem, though I think it shouldn't as we use " port no" to be very specific, as to pointing to the exact laptop on which leapmotion is running. Just this question popped up in my mind before I read up the link you suggested to find solution for the error.

[Joe_Ward]

If the two computers are not on the same subnet (either wireless or wired), that does complicate matters. The server will either need a static IP address or you will have to set up port forwarding on the router controlling the server's subnet to pass incoming connections to the external_ip:port to that specific computer. (At least, that's my understanding -- I don't claim to be an expert on networking.)

(The port doesn't indicate which computer to connect to, it is more of a connector to a specific application on the computer at the given IP address.)

For simplicity, you should get this working with two computers on the same network subnet (or using a server with a static IP).

One thing to check is whether the server is actually listening for remote connections. You can use the command line netstat utility.

Run:

netstat -a

In the long list it prints out, you should find:

tcp4       0      0  localhost.6437         *.*      LISTEN

That shows (on my computer), that the service is ONLY listening on localhost. You should see *.6437 instead on your server.

[Batty]

I tried everything. But unfortunately with not much luck! You meant trying 'netstat -a' on server computer? Yes I did, but it only listens to 127.0.0.1 which is infact the local host.

And secondly, I tried to keep both computers on same network. And I used the addresses which is of the form 192.168.1.xx to connect to server. Is that the right way ? That dint work too.

I read the manual you sent me on leapmotion error too. But it talks more or less the same which we discussed. If I have not mistaken, all I am doing is a simple connection to the leapmotion sever which has a specific address and port no. I thought it would be straight forward. I am running out of ideas

[Joe_Ward]

If netstat is listing 127.0.0.1, this means that the Leap Motion service will NOT accept remote connections -- which leaves the following logical possibilities:

• There is an error in your JSON in the config file -- in fact, the last comma in the JSON you show above, should NOT be there. It should be:

  {
  "configuration": {
  "websockets_allow_remote": true,
  "websockets_enabled": true
  }
  }

• You changed the wrong config file. Since Windows can keep different App Settings for different users, there might be more than on config.json file on the server computer.

• There could be a bug in the service that causes it to ignore the setting.

[Batty]

Hey joe, thanks for all your patience. This was bugging me all night, finally found that the problem was the workgroup. I changed the settings of both the laptop to same work group and now it works I am still in the thinking process, was it just this or it was collections of things which I did made it work. Anyways glad that it work and thank you for all your reply(kind of moral support so now Next is to try computers on different network. All I tried before, was two laptops same network.

[Tiare]

I realize that this conversation is several years old, but I ran into the same issues as @Batty. (I'm trying to get data from multiple Leaps, which are connected to different computers.) @Joe_Ward's comments were extremely helpful to me (a big THANK YOU to you!), and ultimately I think I have found out why it didn't work out for Batty at first, but then suddenly it did later on.

I don't think it has anything to do with changing the work group. I believe the trick is to exit the Leap Motion Control Panel, then edit the config.json, and then start the control panel again. Otherwise the changes won't take effect.

I apologize if this has already been clarified in another thread somewhere.