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Opnsense box stops getting wan IP after 15 or 20 days - Zenarmor error

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meazz1:
I am running 21.1.6.
I have experienced twice in last month an a half that my router stopped receiving IPV4 WAN address from the AT&T pass thru modem. It does not lose the IPV6 address.
I had to reboot to get it back up and running.

What could cause this?
For troubleshooting this, what logs should I be looking into? I have Zenarmor- Sensei setup for LAN interface, and this is what I saw in the System Diagnostic Activity. Can this be the reason, "HeapDumpOnOutOfMemoryError"?
My box has 8 GIG of memory and Intel core i5 2.30 GHZ 4 core cpu.

* /usr/local/openjdk8/bin/java -Xms2g -Xmx2g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -server -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djna.nosys=true -Djdk.io.permissionsUseCanonicalPath=true -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread=0 -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -Dlog4j.skipJansi=true -XX:+HeapDumpOnOutOfMemoryError -Des.path.home=/usr/local/lib/elasticsearch -cp /usr/local/lib/elasticsearch/lib/* org.elasticsearch.bootstrap.Elasticsearch -d --pidfile=/var/run/elasticsearch/elasticsearch.pid -Epath.conf=/usr/local/etc/elasticsearch{VM Periodic Task Th}
*

sy:
Hi,

This is elasticsearch log and just affect Zenarmor reports. Did you check /var/log/system/system{date}.log file?

firewall:
It may not be a Zenarmor problem. If you use Intel NICs, see this thread: https://forum.opnsense.org/index.php?topic=27299.60

The solution outlined here resolved the issue for me: https://forum.opnsense.org/index.php?topic=27299.msg137350#msg137350

EDIT: called it too soon. still broken.

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