Hi Mateusz,
However still I strongly suggest, for us to just share e-mail addresses for each of our ISP that your Viewers or Hosts don't work, so you can talk directly to them, and in this way resolve problem between each other.
We could try contacting them but they won't listen because we are not their client/customer. So the best way to go would be one of you send a ticket to Orange and describe the problem. Once they respond, you could get their direct contact information or give them our contact information, such as support@remoteutilities.com . We could then try to resolve the issue directly with them.
Thanks!