I totally get your frustration! I had a similar issue with Windows Remote Desktop and TeamViewer before. I switched to HelpWire, and it’s been a game-changer.
It's super easy to set up, doesn't give any of those annoying error codes, and doesn’t flag your sessions as “commercial use.”
There’s already some positive buzz about it on the net; check out the reviews here: https://www.softwarereviews.com/products/helpwire
Plus, it's free for commercial use, so you don't have to worry about any restrictions.