Troubleshooting Slow Speed and High Ping

[Stickysidedown]

Hi all, glad to be here on the forum. Been lurking and learning the usage of shell tunables and the like.

I got a second hand switch (Netgear GS724Tv4) to enable LAGG that led me to upgrading from PFSense 2.4 or so and switching over here to OPNSENSE. Ever sense I upgraded from 2.45 haven't been able to get rock steady 900mbits download when the ISP isn't loaded. It was literally forgotten in a corner cuz it never needed anything.

Running a J1900 with 8 gigs of ram with HP NC364T (quad intel em) bare metal. SB8200 modem, LAGG to router, LAGG to gigabit switch. Paying for 940down/10up and after a lot of tuning I can get close to 800 Mbps on tests again. Flow control disabled, EEE disabled, net.inet.rss.bits 2 net.inet.rss.enabled 1 net.isr.bindthreads 1 net.isr.maxthreads -1 net.inet.ip.intr_queue_maxlen 3000 because 1000 had drops kern.ipc.nmbclusters 1000000

The problem is the internet will frequently crawl to a halt, 6.5 up and down with 700ms ping (30 unloaded).  Or .6down and 8 up at 999ping unloaded

iperf3 client to router 800-900 mbits/sec both directions during this.


Tried restarting Unbound because I'm getting DNS_PROBE_FINISHED_NXDOMAIN but it did not fix either that or the speed issues. Same with a reboot of the modem.

Inb4 upgrade from the intel atom quad core

[Stickysidedown]

Seems to be fixed by removing the LAGG from the SB8200. It's on firmware AB01.01.009.51_080720_183.0A.NSH and running a LAG is known to cause an issue with this model of modem.