I also not able to connect to the router with the spf Klk15 …
On a second kerlink I installed firmware 3.3.3 that solved my LTE stick detection problem but the spf seems to not be compatible with TTN.
I’ve tried to downgrade the spf on version klk11 but the issue is the same. Potentially it comes from the firmware 3.3.3 ; I know they have changed firewall rules… Any idea, anyone solved that?
I assume it is related to this in the release note:
"Also, note that the firewall now has rejection rules at the end of the INPUT and OUTPUT chains, to properly disallow non-matching traffic. This implies that new rules ‘appended to the chain’ will never be matched; if you want to add new rules, either make sure to add them to a file in /etc/firewall.d/, or if you add them to your application, ‘prepend’ them to the chain by using “-I” (insert) instead of “-A” (append). "
and /user/spf/bin/execute_spf.sh is creating new iptables rules with -A
So I changed the -A by -I in this file and now it works…