Litecoin QT

I've created a litecoin-qt server with the following configuration:

{ "pools" : [ { "url" : " ", "user" : "something", "pass" : "somethingelse" } ] , "auto-fan" : true, "temp-cutoff" : "95", "temp-overheat" : "85", "scrypt" : true } I'm able to connect to it from at least 3 different machines on the network, plus one connection from itself (I'm having cgminer run on the server).

However, I'm unable to connect from any other machines - it flashes the following:

[2014-02-04 21:47:03] Pool: 0 URL: User: something Password: somethingelse [2014-02-04 21:47:03] Press any key to exit, or cgminer will try again in 15s. [2014-02-04 21:48:03] HTTP request failed: Operation timed out after 60000 milliseconds with 0 out of -1 bytes received [2014-02-04 21:48:03] Failed to connect in json_rpc_call [2014-02-04 21:48:03] Succeeded delayed connect [2014-02-04 21:49:03] Timed out waiting for response in initiate_stratum [2014-02-04 21:49:03] Initiate stratum failed [2014-02-04 21:49:03] Closing socket for stratum pool 0 [2014-02-04 21:49:03] FAILED to retrieve work from pool 0 21:49:03] Pool 0 slow/down or URL or credentials invalid And ends with:

[2014-02-04 21:40:48] Timed out waiting for data on socket_full [2014-02-04 21:40:48] Initiate stratum failed [2014-02-04 21:40:48] Closing socket for stratum pool 0 [2014-02-04 21:40:48] FAILED to retrieve work from pool 0 21:40:48] Pool 0 slow/down or URL or credentials invalid