This makes me want to cry! WebGUI instability on all different hardware!

[roohoo]

I don't believe it!  I decided that I'd try reinstalling OPNsense as a VM under Proxmox so that Proxmox acted like a sort of Hardware Abstraction Layer.  I even boosted the RAM to 64GB so that OPNSense could have 16GB.

The result:  Exactly the same.  The firewall appears to keep working, with all my network's devices keeping their Internet connectivity, but the webgui is displaying nonsense - with the characteristic 20000+ days uptime (the correct uptime, as displayed in the shell, being 1 hour 45 minutes).

I'm so disappointed as I thought that this might cure my issues - with Linux drivers handing virtual hardware to OPNsense, but it wasn't to be!

[Monviech (Cedrik)]

Please:

root@opn-dev-02:~ # sysctl kern.boottime

[Nullman]

I don't believe it!  I decided that I'd try reinstalling OPNsense as a VM under Proxmox so that Proxmox acted like a sort of Hardware Abstraction Layer.  I even boosted the RAM to 64GB so that OPNSense could have 16GB.

The result:  Exactly the same.  The firewall appears to keep working, with all my network's devices keeping their Internet connectivity, but the webgui is displaying nonsense - with the characteristic 20000+ days uptime (the correct uptime, as displayed in the shell, being 1 hour 45 minutes).

I'm so disappointed as I thought that this might cure my issues - with Linux drivers handing virtual hardware to OPNsense, but it wasn't to be!

That completely rules out the issue with opnsense. Your clients are broken, or something between your clients and opnsense.

[meyergru]

The keyword is "webgui" here... as it seems, not even the time being off is present when using SSH.

When the problem occurs only on the web gui, it has to be the client, which means browser or some kind of plugin. I would try another browser first.

[nero355]

The keyword is "webgui" here... as it seems, not even the time being off is present when using SSH.

When the problem occurs only on the web gui, it has to be the client, which means browser or some kind of plugin. I would try another browser first.

But...

I'm setting it running and then leaving it alone.  Nothing configured except for the interfaces and ssh access.  Every now and again I log in to see what it's up to.  I log into it from a myriad of different machines running lots of different browsers but the results are always the same.

Should not be the issue then I guess ?!

[meyergru]

Could still be a plugin or an antivirus engine.

[lmoore]

Please:

root@opn-dev-02:~ # sysctl kern.boottime

Also, after booting:

sysctl kern.msgbuf

[roohoo]

I installed Sophos firewall to see how it fared.  For the first 15 hours, it worked perfectly, then all internet access stopped.  It had dropped the connection to my (Gigaclear) fibre modem.  Rebooting the VM had no effect.  Only physically turning off the machine and turning it back on worked.

I'm starting to think that my wildly unlikely hypotheses that something on my network - or Gigaclear's - is sending malformed packets that can kill a router might actually be the case.

I was going to try pfsense too, but I've lost my enthusiasm.

Sorry I didn't get to try your troubleshooting ideas but constantly changing my router got really old really fast and my wife and others grew most perturbed every time their connectivity was interrupted!

Thank you again.

If I decide to investigate the benefits of OPNsense again in the future, and the troubles remain the same, I'll report in on this thread.

Thank you all.

[nero355]

I installed Sophos firewall to see how it fared.  For the first 15 hours, it worked perfectly, then all internet access stopped.  It had dropped the connection to my (Gigaclear) fibre modem.  Rebooting the VM had no effect.  Only physically turning off the machine and turning it back on worked.

I'm starting to think that my wildly unlikely hypotheses that something on my network - or Gigaclear's - is sending malformed packets that can kill a router might actually be the case.

Weird stuff... :(

So no results from any of your OPNsense machines at that friends house for now ??

[tschips]

I'm happy I found this thread as I'm suffering from the exact same problem on my private opnsense router.
The WebGUI is quite unreliable, the dashboard loads widgets only seldomly (oftentimes after a fresh restart) and my uptime shows the exact same weird value of 20611 days. Also other parts of the WebGUI, like for example the DHCP leases overview, often don't show information. A few page reloads later it might. System updates via the WebGUI don't work as well. Via SSH everything is fine.

Just to make things clear, system time seems to be fine.

Code Select Expand

root@fw:~ # sysctl kern.boottime
kern.boottime: { sec = 1778614567, usec = 705583 } Tue May 12 21:36:07 2026


top doesn't show high load, but I'm wandering why this machine swaps with 8GB of RAM.

Code Select Expand

last pid: 64090;  load averages:  3.05, 10.70, 11.72                                        up 26+00:13:03  21:49:10
1559 processes:1 running, 1558 sleeping
CPU:  3.4% user,  0.0% nice, 14.2% system,  0.0% interrupt, 82.5% idle
Mem: 4147M Active, 47M Inact, 9520M Laundry, 1463M Wired, 56K Buf, 476M Free
ARC: 470M Total, 231M MFU, 109M MRU, 8365K Anon, 5040K Header, 117M Other
     259M Compressed, 933M Uncompressed, 3.60:1 Ratio
Swap: 8192M Total, 3637M Used, 4555M Free, 44% Inuse, 12K In

I'm pretty sure it has to do with my configuration or something going havoc on the network. Any business opnsense installation i came across doesn't show this behaviour. But I ran out of ideas how to identify these problems? Any suggestions what to look for or which logs might be helpful?

[nero355]

But I ran out of ideas how to identify these problems?

Any suggestions what to look for or which logs might be helpful?

Have you read the whole topic and done everything mentioned along the way ?!