To give a feedback, sorry for the late replies, the support whom was really helpful and friendly, changed the ip address and port used for the server and it fixed everything. So if some of you still get this problem, kindly write a ticket to support and they will have it fixed for you.
Become part of a great team that has nothing less as its goal than to be the world's best game server provider. Keep facing new, challenging and exciting tasks at a company that values your opinion.
open positions @ Nitrado