ACARS and VDL2

I wonder if someone can assist me please?

I have flightairmap ACARS running as a service on one Pi and it is listening for data.
I have ACARSDeco2 and DumpVDL2 running as services on another Pi (with 2 dongles) sending data to the Pi with FlightAirMap.

Every time I boot or reboot the Pi, the VDL2 and ACARS services start, log files are created and data appears in them but nothing is sent to the other Pi until I manually restart the services.

Both Pis are running Buster.

The service files are located in /etc/systemd/system and contain the following:

[Unit]
Description=dumpvdl2
Wants=network.target
After=network.target

[Service]
User=pi
ExecStart=/usr/local/bin/dumpvdl2 --output-file /home/pi/Documents/vdl2 --daily --rtlsdr 0 --gain 40 --correction 64 --output-acars-pp 192.168.1.232:9742 --centerfreq 136725000 136775000 136875000 136975000
Type=simple
Restart=always
RestartSec=30

[Install]
WantedBy=default.target

There are link to these in /etc/system/default.target.wants
What am I missing?