Attach strophe

I tried everything, but still I can't get an attach connection :( using http_bind.

I'm using python for getting the credentials. eJabberd returns succesfully, then I sent the this credentials to frontend side, and I tried to make an attach using strophe with the credentials gotten from backend, but I can get connected.

2015-05-13 23:26:54.231 [info] <0.447.0>@ejabberd_listener:accept:309 (#Port<0.5626>) Accepted connection 190.236.207.49:40215 -> xxx.xxx.xxx.xxx:5280
2015-05-13 23:26:54.231 [info] <0.11533.1>@ejabberd_http:init:149 started: {gen_tcp,#Port<0.5626>}
2015-05-13 23:26:54.933 [info] <0.11535.1>@ejabberd_c2s:wait_for_sasl_response:913 ({socket_state,ejabberd_http_bind,{http_bind,<0.11534.1>,{{190,236,207,49},40215}},ejabberd_http_bind}) Accepted authentication for reto by ejabberd_auth_internal from 190.236.207.49

Can anybody tell me if I have to install anything. I'm using eJabberd 15.