On ethernet gateway send() returns true without controller connected/ no ethernet link at all.

[Mateusz Korniak]

When send()ing initial values early in loop() in case of controller not connected
or even ethernet cable not plugged in, messages are sent and lost but send() returns true.

I would expect when link to controller is not established, send() should return false.

MySensors 2.3.2 and MY_GATEWAY_W5100 Ethernet 2.0

HW: Nano + W5500