Every feed I add comes up with "Access Denied"

[sfc-juventino]

I know the credentials are correct because they work in other players. I have tried 2 different ones. Any ideas ? I have upped the network timeout to the maximum 600 with the same result, but it fails well within 60 seconds. I've also checked the firewall to make sure that sfvip player.exe can get through

[sfc-juventino]

A friend of mine has just come over and tried his xtreme account link and still no deal, not in this and not in the SFVIP player

The format is :
http://servername.org/get.php?username=XXXXXXXX&password=YYYYYYYYY&type=m3u_plus
and works in other IPTV Player

Always the same Access Denied error

Note : this URL works - https://iptv-org.github.io/iptv/index.m3u

[sfc-juventino]

Note that I have also tried to add the details in this format, under User and Password:

Address: http://servername.org/
Username: XXXXXXXX
Password: YYYYYYYYY

But it still fails with the Access Denied message. But for some reason it works with a player like IPTV Smarters Pro (which is a massive memory hog, which is why I would like to use this)