What else should I check?
Probably the simplest is activating upnp on your router and bitcoin node.
The latter one did the trick when I was facing the same issue back in October of last year
[had no luck with the router adjustments] and alternatively, you can achieve a similar result with the help of uTorrent:
I found a workaround of some sort and I'll probably stick with it for the time being
[credit goes to "this video"]:
Note: It doesn't work with a VPN connection [if you try it, you need to restart your windows to get it back to work].- Steps:
- Download uTorrent
- Option > Preferences > Connections > Listening Port > 8333 > Apply > Ok.
- Keep it open!