I'm in the middle of upgrading a Portal from 11.2 to 11.4, Portal successfully installs and runs. However after I uninstall the previous web adaptor and install the new web adaptor I get to the configuration page and it never seems to configure and just sits there and spins.
I am using the correct administrator credentials. I have tried various FQDNs of my portal machine (the web adaptor is installed on a separate web server). Using IIS on Windows Server 2016.
This is the second time I've made it to this point and cannot get any further. There's no errors or anything. Does anyone have any ideas?