I updated my Dolphin to the latest version today and now the adapter that I've always used before is now not working and I’m getting the message "Error Opening Adapter: Operation not supported or unimplemented on this platform." This has never been a problem before, what should I do?
I would uninstall and reinstall everything from scratch if you cannot go back to the version of dolphin you were using before. I had an issue where I tried a recent version of dolphin and my wiimotes would not sync no matter what. Went back to the old version I had and immediately synced every time without an issue.
Maybe try 11225 as it pertains to wiimote. I wont be trying it out for up to a week.