Hi @psychedelicu
Thanks for posting in our business forum.
1. Please read the guide for troubleshooting. I require a screenshot or reply to every question in this guide so I can move on to the next steps.
(Please mosaic your sensitive information. Here is a list of information considered sensitive:
1. Public IP address on your WAN if your WAN is.
2. Real MAC address of your device.
3. Your personal information including address, domain name, and credentials.
For troubleshooting purposes, when a WAN IP is needed, please leave some values visible for identification.)
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2. So, this very simple question "I cannot install Windows 11, that is a problem with Windows?". I don't think so. Or maybe you have the wrong hardware or steps are not correct? Can you please not point fingers - "that many seem to have issues"? Of course, this is a very simple feature, and some run into issues. Yet there are people who resolved the port forwarding issue. Some don't and that might be a problem with your ISP or your environment. You should at least list what you have tried and details of your config that relate to port forwarding.
3. Refund or not, that's your choice.