Nothing obviously wrong with any of those settings.
The PilotAware setting uses UDP protocol, and Flarm uses TCP. Normally there would be no reason to block UDP to your iPad. Unless you have some sort of security application installed?
Not sure what to suggest, but I would try telling your iPad to 'forget' the PilotAware network. Power the iPad off and reboot, then reconnect to the PilotAware hotspot.