The system log of my TO with 3.8.1 firmware is full following errors:
2017-09-23T05:01:20+02:00 err nikola[]: (v42) socket: [Errno 104] Connection reset by peer
2017-09-23T03:01:25+02:00 err turris-firewall-rules[]: (v63) Failed to download https://api.turris.cz/firewall/turris-ipsets.gz.sign
It’s obvious that the TO firewall rules are not updated. Has anybody idea what is wrong?