After upgrading to the latest version (19.07.3) I started noticing rubber banding in games and discord calls breaking up.
When tested using my desktop I got ping spikes as high as 1000ms.
This also happened when pinging from open wrt itself, even though the cpu usage is low.
I am running open wrt as a switch + access point without any dhcp server or firewall, I have a separate server computer working as a router.
Even when I ping the server from the open wrt router I get these ping spikes.
How can I debug this issue, was any change introduced recently?