Port forward does not work on Route10

I am trying to configure port forwarding, but somehow I can’t seem to get it to work.

The setup has a WAN IP address I want to connect to; this is wan_ip. On this IP address, I want to forward TCP port 7676 to 172.16.32.2:7676.
When I consult https://help.alta.inc/hc/en-us/articles/36709164963995-Port-Forwarding#h_01JTKX7PHST3Z3XC7AMZESK1S3, I should end up with the following configuration:

Some extra screenshots of the rule:

But this doesn’t work, am I overlooking something?

I believe you want to change the port you want to forward to the Destination Port, not Source Port. The below configuration was working for me previously, but I no longer use port forwards.

tfmm is correct, Source Port should be set to ‘Any’
Destination Port is what you should be configuring.

Thanks!

Yes the source port is why. Note the (!) there by Source Port, that warning is present because it’s being used in a way that’s almost certainly incorrect (but can be correct in some rare edge cases, so we don’t prohibit it, just warn). If you hover over that warning, it explains why it’s there. Just says that source port is almost always random and should be left to Any.