Jails Loose Network Connection intermittantly

[shane.prince]

Version:
TrueNAS-12.0-U5

Hi Guys i need some help in identifying the root cause of why my Jails intermittently loose all network connections and the only way to get everything working again is to shutdown jails and reboot my TrueNAS server. When it happened yesterday i logged into one of the Jails shell and ran some basin connectivity tests which all came back as Destintaion Host not found. i also checked to see if the Jail still had its IP which is did. From all my Jails i could not reach the gateway and was unable to communicate with anything on my local network.
Does anyone have a recommendation what the problem might have been and can direct me to some logs which will shed some light onto this problem and hopefully resolve it.

 

[shane.prince]

It happened again today were i had to reboot my TrueNas server to get the Jails operational again. I have no idea why this is happening more and more frequently.
This is the Output of ifconfig during the Issue

login as: root
root@10.0.0.13's password:
Last login: Tue Sep 28 13:35:35 2021
FreeBSD 12.2-RELEASE-p9 2ee62d665f0(HEAD) TRUENAS

TrueNAS (c) 2009-2021, iXsystems, Inc.
All rights reserved.
TrueNAS code is released under the modified BSD license with some
files copyrighted by (c) iXsystems, Inc.

For more information, documentation, help or support, go here:
http://truenas.com
Welcome to TrueNAS

Warning: settings changed through the CLI are not written to
the configuration database and will be reset on reboot.

root@omniaserver[~]# ifconfig
igb0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
description: Lan 1
options=e523bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
ether 0c:c4:7a:b3:23:16
inet 10.0.0.13 netmask 0xffffff00 broadcast 10.0.0.255
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
nd6 options=9<PERFORMNUD,IFDISABLED>
igb1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=e527bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,WOL_MAGIC,VLAN_HWFILTER,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6>
ether 0c:c4:7a:b3:23:17
media: Ethernet autoselect
status: no carrier
nd6 options=1<PERFORMNUD>
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet 127.0.0.1 netmask 0xff000000
groups: lo
nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
pflog0: flags=0<> metric 0 mtu 33160
groups: pflog
bridge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
ether 02:70:a6:03:a2:00
id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
maxage 20 holdcnt 6 proto stp-rstp maxaddr 2000 timeout 1200
root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
member: igb0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
ifmaxaddr 0 port 1 priority 128 path cost 20000
groups: bridge
nd6 options=1<PERFORMNUD>
root@omniaserver[~]#