Since a few days ago, my spitz no longer connects to the internet (via Modem/4G). Well, the modem does connect and does get an IP-address, but there is no connection, and if I try ping (logged in as root to busybox), I get:
root@spitz:~# ping 126.96.36.199
PING 188.8.131.52 (184.108.40.206): 56 data bytes
ping: sendto: Operation not permitted
Doing ifconfig does show it has gotten an IP address from my provider:
wwan0 Link encap:Ethernet HWaddr 3A:13:9B:85:5B:57 inet addr:220.127.116.11 Bcast:18.104.22.168 Mask:255.255.255.224 inet6 addr: fe80::3813:9bff:fe85:5b57/64 Scope:Link UP BROADCAST RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:207 errors:0 dropped:0 overruns:0 frame:0 TX packets:473 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:15626 (15.2 KiB) TX bytes:38416 (37.5 KiB)
and interestingly also shows some packages have been sent back/forth. Replacing the SIM card with another one does not help, reboot also not. I should add that it has been running 24/7 for weeks without problems and that I do have the hardware fix (removal of capacitor) done.