Not sure if this is the correct list on which to ask but a new node created just over 7 days ago is now being shown on Tor Metrics (atlas.torproject.org) as being down. However local logs show heartbeat activity and some directory activity. A port scan of the IP address shows: -- cut here Starting Nmap 7.80 ( https://nmap.org ) at 2022-01-05 14:22 GMT Nmap scan report for [redacted] Host is up (0.018s latency). Not shown: 997 closed ports PORT     STATE    SERVICE 22/tcp   filtered ssh 8085/tcp open     unknown 9001/tcp open     tor-orport Nmap done: 1 IP address (1 host up) scanned in 1.27 seconds -- cut here /var/log/tor/notices.log shows: -- cut here Jan 05 00:00:34.000 [notice] Tor 0.4.6.9 opening new log file. Jan 05 02:45:49.000 [notice] Heartbeat: Tor's uptime is 6 days 8:42 hours, with 3189 circuits open. I've sent 337.09 GB and received 332.67 GB. I've received 64461 connections on IPv4 and 13628 on IPv6. I've made 106191 connections with IPv4 and 36300 with IPv6. Jan 05 02:45:49.000 [notice] While not bootstrapping, fetched this many bytes: 104491070 (server descriptor fetch); 5940 (server descriptor upload); 11006113 (consensus network-status fetch); 1211313 (microdescriptor fetch) Jan 05 02:45:49.000 [notice] Circuit handshake stats since last time: 632/632 TAP, 172332/172332 NTor. Jan 05 02:45:49.000 [notice] Since startup we initiated 0 and received 0 v1 connections; initiated 0 and received 17 v2 connections; initiated 0 and received 0 v3 connections; initiated 2 and received 11816 v4 connections; initiated 113167 and received 63288 v5 connections. Jan 05 02:45:49.000 [notice] Heartbeat: DoS mitigation since startup: 0 circuits killed with too many cells, 0 circuits rejected, 0 marked addresses, 0 same address concurrent connections rejected, 0 connections rejected, 0 single hop clients refused, 0 INTRODUCE2 rejected. Jan 05 08:45:49.000 [notice] Heartbeat: Tor's uptime is 6 days 14:42 hours, with 131 circuits open. I've sent 341.77 GB and received 337.28 GB. I've received 66326 connections on IPv4 and 13652 on IPv6. I've made 108563 connections with IPv4 and 37174 with IPv6. Jan 05 08:45:49.000 [notice] While not bootstrapping, fetched this many bytes: 108020255 (server descriptor fetch); 8064 (server descriptor upload); 11383626 (consensus network-status fetch); 1232744 (microdescriptor fetch) Jan 05 08:45:49.000 [notice] Circuit handshake stats since last time: 193/193 TAP, 57579/57579 NTor. Jan 05 08:45:49.000 [notice] Since startup we initiated 0 and received 0 v1 connections; initiated 0 and received 17 v2 connections; initiated 0 and received 0 v3 connections; initiated 3 and received 11912 v4 connections; initiated 115806 and received 65008 v5 connections. Jan 05 08:45:49.000 [notice] Heartbeat: DoS mitigation since startup: 0 circuits killed with too many cells, 0 circuits rejected, 0 marked addresses, 0 same address concurrent connections rejected, 0 connections rejected, 0 single hop clients refused, 0 INTRODUCE2 rejected. -- cut here Any pointers on how to investigate the problem further would be welcome. Thanks, Quentin