3rd party VPS won't work

 

When I try to install any broker on my VPS they always ask for my Proxy Server login. When I give this it still won't work.. What do I need to do? 

 
This is something wrong with your VPS (because there is some minimum requirement for Windows VPS and this VPS does not meet them).
There are many external VPS providers which is not suitable for Metatrader 5 for example.