I'm getting this error: `Error downloading URL. Your network connection may be down or your proxy settings improperly configured.`

I'm getting this error:

>> minlp

Error using urlreadwrite (line 98)

Error downloading URL. Your network connection may be down or your proxy settings improperly

configured.

Error in urlread (line 47)

[s,status] = urlreadwrite(mfilename,catchErrors,url,varargin{:});

Error in apm (line 9)

response = urlread(url_base,'get',params);

Error in minlp (line 35)

apm(server,app,'clear all');

>>

But I did disabled the FireWall as suggested Here. How can I fix it ?

The file has been obtained from HERE. I want to run minlp.m