Over-the-air-activation OTAA with LMIC

I just discovered that messages are actually being send, only after a (yet) inexpiable long time (approximately 15 min).

Starting
Packet queued
405: EV_JOINING
38257442: EV_JOINED
42179989: EV_TXCOMPLETE (includes waiting for RX windows)
Packet queued
44133708: EV_TXCOMPLETE (includes waiting for RX windows)
Packet queued
46215066: EV_TXCOMPLETE (includes waiting for RX windows)
Packet queued

325: EV_JOINING
55224904: EV_JOINED
60192041: EV_TXCOMPLETE (includes waiting for RX windows)
Packet queued
64292173: EV_TXCOMPLETE (includes waiting for RX windows)
Packet queued