For the record, I just pushed a new installer and package for the TTN mp-forwarder that resolves the wait for internet connection on boot issue.
As the maintainer of the mp_pkt_fwd software I just happen to stumble onto this thread. I’m wondering why no-one bothered to log an issue on github if this happens to multiple users. I can’t solve issues that I’m not aware of.
FYI, the start script is at S95. Tested and working on mLinux 3.1.0 for months with multiple reboots. However I will change the startup to work in another way to resolve this.