In XEN cloud the Internet in the virtual machines is very slow - just the external internet. Both in windows-based machines and in Linux-based machines.
The situation is this: When you access the VMs on ports 80/443 using the browser the speed is correct. When you use any other ports, for example 22/21, the speed starts correctly and quickly drops to zero.
** This happens only in the virtual machines and not in the host **
I would love the wisdom of the masses :)