UPnP support was removed (it was previously disabled by default) due to continuous issues with the miniupnp library.

If the automatic port forwarding protocols are not working, it is highly likely that the issue is that your router does not support them and you will have to port forward manually.

Please open a new topic in Technical Support so that your issue can be troubleshooted. You can start Bitcoin Core with the -debug=net option and find and post any lines beginning with pcp: or natpmp:. This will tell us what that module is doing, and should inform us of the issue.