Outgoing packets to internet getting lost

TrueNAS General
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1

I have been having intermittent issues connecting to the internet from my Scale 25.04 server over the past couple months. This happened with the 24.10.x releases too.

This is a bare metal system, no virtualization.

From the command line, I initiate a ping to either 1.1.1.1 or 8.8.8.8. After 5+ minutes, I get anywhere from 50 to 80% packet loss. This occurs even after a reboot of the server.

I do not believe this is a hardware issue. I can boot the same server into Fedora 42 from a USB stick, and ping for 10+ minutes with a 100% success rate.

Server specs:

  • MB: Supermicro X11SSL-CF
  • CPU: i3-6100
  • RAM: 2x8GB Kingston DDR4 ECC
  • HD: 6 x 8GB WD Red (RAIDZ2)
  • GPU: Intel ARC A380

Network specs:

  • Ubiquiti UCG-Max
  • Ubiquiti USW-Pro-Max-16-PoE

My server is connect directly into the USW-Pro-Max-16-PoE, which is connected to the UCG-Max. I have configured the server’s MAC address in UniFi to be assigned 192.168.50.150.

Things I’ve tried:

  • reinstalling TrueNAS Scale 25.04 from scratch, without reloading my old configuration (just imported the pool)
  • using both network ports on my server
  • using to different IP addresses (192.168.50.120 and 192.168.50.150)
  • using both DHCP and static IP addresses

Note that when the outgoing packets are being lost, I can ping the server from another PC on the LAN successfully 100% of the time. I can also ping a LAN PC from the server 100% of the time. It’s only outgoing packets to the internet that are intermittently getting lost.

I’m not sure if related, but I see messages like this when I run dmesg from the command line:

[  113.848058] br-e942cf72e84b: port 1(vetheca09c0) entered blocking state
[  113.848063] br-e942cf72e84b: port 1(vetheca09c0) entered forwarding state
[  113.849262] eth0: renamed from veth1361ede
[  113.849556] br-8dfdc772e8b3: port 1(veth2fdcbc3) entered blocking state
[  113.849560] br-8dfdc772e8b3: port 1(veth2fdcbc3) entered forwarding state
[  113.849629] br-ad475fad9f2a: port 1(vethfe34fdb) entered blocking state
[  113.849631] br-ad475fad9f2a: port 1(vethfe34fdb) entered forwarding state
[  113.851113] br-3a50457d14fb: port 1(veth06b9afa) entered blocking state
[  113.851118] br-3a50457d14fb: port 1(veth06b9afa) entered forwarding state

Attached is a sample ping output to the internet.

scale_network_outbound_pings
scale_network_outbound_pings743×1193 220 KB

Would appreciate any troubleshooting help I can get, this is quite frustrating.

Thank you!

2

Okay, but can you still post what hardware is involved and how your network is set up. It’s also good to know if this is virtualised.

3

Sorry, I neglected to include the hardware information. I’ve updated my post.

4

Well it’s apparently solved. After my 3rd reinstall of TrueNAS, followed by an import of the settings, I have had no issues with outgoing packets.

I have absolutely no idea what was different from my first and second reinstalls, but I’m happy it’s working now.

Hopefully it stays working!