These SD-cards are magic. But tend to become like pieces of paper with incompatible notes on each.
My SD3 fetches http but has no 'lynx-like text-only rendered', and SD5 which has that doesn't resolve the IPs.
I copied by script from SD3 to SD5 AND the /etc/resolv.conf
The telephone-modem is unusual and needs my specially evolved script, so I can't just use ; and I suspect that resolv.conf is not being used.
It would be good if Debian move up from puppy-talk: do A, do B, do ...N; to: Confirm USB is detected, by *; confirm USB switched from CDROM to serial/modem mode, by *; .....; confirm DNS-IP's are accessed at ...