Got reports up to 160 km for a few days until I had to set up Pi Zero from scratch due to a WLAN issue.
Virgin Raspbian, updated and upgraded and nothing installed / running but PiAware… except for testing.
Everything seems fine. Browser shows internet sites, can remote desktop, see all kinds of planes on PiAware FlightAware table and map on the local IP, but My ADS-B stats say No Positions to Report and Anomalies 97% CPU.
Edit: My ADS-B says Unique Identifier: 8332f41d… and the Welcome mail speaks of some 7a9bdd45, which seems to be a UId as well!
Again, before the reinstall with the exact same setup it worked.