Frequent Server Connection Drops - Need Assistance

Hello everyone,

Since last night, I have been experiencing a recurring issue with my server's connection dropping every 30 to 60 seconds. When I'm in the GUI, it stops responding and then displays a "refused to connect" message. I've attempted both HTTP and HTTPS connections using both the hostname and IP address, but the behavior remains the same. The server connects initially but disconnects after a short period. Interestingly, I can observe it going offline and back online from the cloud.

I want to emphasize that I haven't made any recent changes to the server or my network; this problem started suddenly without any apparent cause. I've already tried restarting my DNS server and domain controller, but unfortunately, that didn't resolve the issue. Based on my investigation, I don't believe it's a problem with the network adapter, as other virtual machines on the same physical server are not experiencing any issues.

Furthermore, I noticed that the same connectivity behavior occurs when using SSH. However, when accessing the virtual machine's screen and using the command prompt there, I don't seem to encounter any issues.

I have also observed that the share's seem to be behaving the same way with windows suddenly saying the files or location cant be found.

Also continues pings to the server never stop during these "drops" in connection that seem to last 10 to 15 seconds.

To address the situation, I have restarted the server and applied all available updates. However, the log files I managed to glimpse before getting disconnected don't reveal any meaningful information.

I'm reaching out to this support board to seek assistance from anyone who might have encountered a similar issue or has suggestions on how to troubleshoot and resolve this problem. Any help or insights you can provide would be greatly appreciated.

Thank you in advance for your time and support.

this is the log since reboot after update and this has happened several hundred times since then.

text  error  warn  system  array  login  

Aug  1 14:08:55 APOLLO winbindd[4668]:   Got sig[15] terminate (is_parent=1)
Aug  1 14:08:55 APOLLO winbindd[4674]: [2023/08/01 14:08:55.224596,  0] ../../source3/winbindd/winbindd_dual.c:1957(winbindd_sig_term_handler)
Aug  1 14:08:55 APOLLO wsdd2[4665]: terminating.
Aug  1 14:08:55 APOLLO winbindd[4674]:   Got sig[15] terminate (is_parent=0)
Aug  1 14:08:55 APOLLO winbindd[4843]: [2023/08/01 14:08:55.225381,  0] ../../source3/winbindd/winbindd_dual.c:1957(winbindd_sig_term_handler)
Aug  1 14:08:55 APOLLO winbindd[4843]:   Got sig[15] terminate (is_parent=0)
Aug  1 14:08:57 APOLLO root: Starting Samba:  /usr/sbin/smbd -D
Aug  1 14:08:57 APOLLO smbd[5443]: [2023/08/01 14:08:57.678126,  0] ../../source3/smbd/server.c:1741(main)
Aug  1 14:08:57 APOLLO smbd[5443]:   smbd version 4.17.7 started.
Aug  1 14:08:57 APOLLO smbd[5443]:   Copyright Andrew Tridgell and the Samba Team 1992-2022
Aug  1 14:08:57 APOLLO root:                  /usr/sbin/wsdd2 -d -4
Aug  1 14:08:58 APOLLO wsdd2[5457]: starting.
Aug  1 14:08:58 APOLLO root:                  /usr/sbin/winbindd -D
Aug  1 14:08:58 APOLLO winbindd[5458]: [2023/08/01 14:08:58.235340,  0] ../../source3/winbindd/winbindd.c:1440(main)
Aug  1 14:08:58 APOLLO winbindd[5458]:   winbindd version 4.17.7 started.
Aug  1 14:08:58 APOLLO winbindd[5458]:   Copyright Andrew Tridgell and the Samba Team 1992-2022
Aug  1 14:08:58 APOLLO winbindd[5460]: [2023/08/01 14:08:58.272609,  0] ../../source3/winbindd/winbindd_cache.c:3116(initialize_winbindd_cache)
Aug  1 14:08:58 APOLLO winbindd[5460]:   initialize_winbindd_cache: clearing cache and re-creating with version number 2
Aug  1 14:08:58 APOLLO emhttpd: shcmd (101): /etc/rc.d/rc.avahidaemon restart
Aug  1 14:08:58 APOLLO root: Stopping Avahi mDNS/DNS-SD Daemon: stopped
Aug  1 14:08:58 APOLLO avahi-daemon[4708]: Got SIGTERM, quitting.
Aug  1 14:08:58 APOLLO avahi-dnsconfd[4729]: read(): EOF
Aug  1 14:08:58 APOLLO avahi-daemon[4708]: Leaving mDNS multicast group on interface br0.IPv4 with address 192.168.1.11.
Aug  1 14:08:58 APOLLO avahi-daemon[4708]: avahi-daemon 0.8 exiting.
Aug  1 14:08:58 APOLLO root: Starting Avahi mDNS/DNS-SD Daemon: /usr/sbin/avahi-daemon -D
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Found user 'avahi' (UID 61) and group 'avahi' (GID 214).
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Successfully dropped root privileges.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: avahi-daemon 0.8 starting up.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Successfully called chroot().
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Successfully dropped remaining capabilities.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Loading service file /services/sftp-ssh.service.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Loading service file /services/smb.service.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Loading service file /services/ssh.service.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Joining mDNS multicast group on interface br0.IPv4 with address 192.168.1.11.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: New relevant interface br0.IPv4 for mDNS.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Network interface enumeration completed.
Aug  1 14:08:58 APOLLO avahi-daemon[5497]: Registering new address record for 192.168.1.11 on br0.IPv4.
Aug  1 14:08:58 APOLLO emhttpd: shcmd (102): /etc/rc.d/rc.avahidnsconfd restart
Aug  1 14:08:58 APOLLO root: Stopping Avahi mDNS/DNS-SD DNS Server Configuration Daemon: stopped
Aug  1 14:08:58 APOLLO root: Starting Avahi mDNS/DNS-SD DNS Server Configuration Daemon:  /usr/sbin/avahi-dnsconfd -D
Aug  1 14:08:58 APOLLO avahi-dnsconfd[5506]: Successfully connected to Avahi daemon.
Aug  1 14:08:59 APOLLO emhttpd: shcmd (112): /usr/local/sbin/mount_image '/mnt/user/system/docker/docker.img' /var/lib/docker 20
Aug  1 14:08:59 APOLLO kernel: loop2: detected capacity change from 0 to 41943040
Aug  1 14:08:59 APOLLO kernel: BTRFS: device fsid 4e355ce4-e2d9-4db3-8b89-43f0285e34cd devid 1 transid 56 /dev/loop2 scanned by mount (5539)
Aug  1 14:08:59 APOLLO kernel: BTRFS info (device loop2): using crc32c (crc32c-intel) checksum algorithm
Aug  1 14:08:59 APOLLO kernel: BTRFS info (device loop2): using free space tree
Aug  1 14:08:59 APOLLO root: Resize device id 1 (/dev/loop2) from 20.00GiB to max
Aug  1 14:08:59 APOLLO emhttpd: shcmd (114): /etc/rc.d/rc.docker start
Aug  1 14:08:59 APOLLO avahi-daemon[5497]: Server startup complete. Host name is APOLLO.local. Local service cookie is 331035937.
Aug  1 14:08:59 APOLLO root: starting dockerd ...
Aug  1 14:09:00 APOLLO avahi-daemon[5497]: Service "APOLLO" (/services/ssh.service) successfully established.
Aug  1 14:09:00 APOLLO avahi-daemon[5497]: Service "APOLLO" (/services/smb.service) successfully established.
Aug  1 14:09:00 APOLLO avahi-daemon[5497]: Service "APOLLO" (/services/sftp-ssh.service) successfully established.
Aug  1 14:09:10 APOLLO kernel: Bridge firewalling registered
Aug  1 14:09:10 APOLLO kernel: Initializing XFRM netlink socket
Aug  1 14:09:16 APOLLO emhttpd: shcmd (128): /usr/local/sbin/mount_image '/mnt/user/system/libvirt/libvirt.img' /etc/libvirt 1
Aug  1 14:09:16 APOLLO kernel: loop3: detected capacity change from 0 to 2097152
Aug  1 14:09:16 APOLLO kernel: BTRFS: device fsid a7550f92-f218-4a7b-9f94-468d13f5279a devid 1 transid 21 /dev/loop3 scanned by mount (6020)
Aug  1 14:09:16 APOLLO kernel: BTRFS info (device loop3): using crc32c (crc32c-intel) checksum algorithm
Aug  1 14:09:16 APOLLO kernel: BTRFS info (device loop3): using free space tree
Aug  1 14:09:16 APOLLO root: Resize device id 1 (/dev/loop3) from 1.00GiB to max
Aug  1 14:09:16 APOLLO emhttpd: shcmd (131): /etc/rc.d/rc.libvirt start
Aug  1 14:09:16 APOLLO root: Starting virtlockd...
Aug  1 14:09:16 APOLLO root: Starting virtlogd...
Aug  1 14:09:17 APOLLO root: Starting libvirtd...
Aug  1 14:09:17 APOLLO kernel: tun: Universal TUN/TAP device driver, 1.6
Aug  1 14:09:17 APOLLO kernel: mdcmd (36): check correct
Aug  1 14:09:17 APOLLO kernel: md: recovery thread: check P Q ...
Aug  1 14:09:19 APOLLO dnsmasq[6164]: started, version 2.89 cachesize 150
Aug  1 14:09:19 APOLLO dnsmasq[6164]: compile time options: IPv6 GNU-getopt DBus no-UBus i18n IDN2 DHCP DHCPv6 no-Lua TFTP conntrack ipset no-nftset auth cryptohash DNSSEC loop-detect inotify dumpfile
Aug  1 14:09:19 APOLLO dnsmasq-dhcp[6164]: DHCP, IP range 192.168.122.2 -- 192.168.122.254, lease time 1h
Aug  1 14:09:19 APOLLO dnsmasq-dhcp[6164]: DHCP, sockets bound exclusively to interface virbr0
Aug  1 14:09:19 APOLLO dnsmasq[6164]: reading /etc/resolv.conf
Aug  1 14:09:19 APOLLO dnsmasq[6164]: using nameserver 192.168.1.111#53
Aug  1 14:09:19 APOLLO dnsmasq[6164]: read /etc/hosts - 3 names
Aug  1 14:09:19 APOLLO dnsmasq[6164]: read /var/lib/libvirt/dnsmasq/default.addnhosts - 0 names
Aug  1 14:09:19 APOLLO dnsmasq-dhcp[6164]: read /var/lib/libvirt/dnsmasq/default.hostsfile
Aug  1 14:09:19 APOLLO kernel: mpt3sas 0000:03:00.0: invalid VPD tag 0x00 (size 0) at offset 0; assume missing optional EEPROM
Aug  1 14:09:19 APOLLO unassigned.devices: Mounting 'Auto Mount' Remote Shares...
Aug  1 14:09:19 APOLLO unassigned.devices: Using Gateway '192.168.1.1' to Ping Remote Shares.
Aug  1 14:09:19 APOLLO unassigned.devices: Waiting 5 secs before mounting Remote Shares...
Aug  1 14:10:12 APOLLO sSMTP[6337]: Unable to locate smtp.office365.com
Aug  1 14:10:12 APOLLO sSMTP[6337]: Cannot open smtp.office365.com:587
Aug  1 14:28:19 APOLLO webGUI: Successful login user root from 192.168.1.217
Aug  1 14:28:21 APOLLO emhttpd: device /dev/sdb problem getting id
Aug  1 14:43:12 APOLLO flash_backup: flush: /usr/local/emhttp/plugins/dynamix.my.servers/scripts/UpdateFlashBackup update
Aug  1 14:43:12 APOLLO flash_backup: start watching for file changes
Aug  1 14:43:24 APOLLO webGUI: Successful login user root from 192.168.1.72
Aug  1 14:54:15 APOLLO flash_backup: flush: /usr/local/emhttp/plugins/dynamix.my.servers/scripts/UpdateFlashBackup update
Aug  1 14:54:37 APOLLO flash_backup: flush: /usr/local/emhttp/plugins/dynamix.my.servers/scripts/UpdateFlashBackup update
 

Edited August 1, 20232 yr by reyokonova