Some routers and/or operating systems do not support dot local (.local) addresse, so you may need to use the numerical IP Address is this is the case.
PG3 can be accessed from http to avoid warning, so change https to http with the numerical IP Address, you still need to append the port i.e. :3000 so http://ipAddress:3000
If the finder shows a isy.io address this was saved by the user, as it cannot "find" remote controllers.
You can also manually add the local IP Address to finder with http://IpAddress:8080/desc