Why I cant download files using cURL? Works only from ubnt site ...

Hello boys,

I`m trying to download a file into my ERPro, If I try download from another host that isnt dl.ubnt.com the download even start.

radionet@BORDA-BGP:~$ curl -vL -o teste.teste http://187.45.181.49/lg/2048MB.test
* About to connect() to 187.45.181.49 port 80 (#0)
*   Trying 187.45.181.49...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:02:07 --:--:--     0* Connection timed out
* couldn't connect to host
* Closing connection #0
curl: (7) couldn't connect to host

Can someone help me here?