The size of my web.config file is comfortably below max, but when adding +- 200 entries like <add ipAddress="36.99.0.0" subnetMask="255.255.255.0" allowed="false"/>
I get a 500 error.
To avoid "do your research", these did not apply or fix:
https://stackoverflow.com/questions/24171031/web-config-size-limit-error
https://stackoverflow.com/questions/59371572/iis-error-500-19-error-when-reading-web-config
Why the 500 error? And also, only control I have on this is via web.config as it's shared hosting and they don't do squat at their end.