Hi all,
Many people recommend limiting your MTU on your router to 1400 to get a better online Dreamcast experience. However, it seems to be quite common for people to have routers that don't allow you to configure the MTU.
I had been searching for how to limit the MTU on the Pi itself for sometime, but couldn't find anything. Helpfully, SpaghettiCat, a member of the Sylverant discord, has now provided instructions, so I thought I'd share them here. I'm not familiar with Linux at all, so can't verify whether this is correct or not, but here goes:
"Here are the instructions to set MTU:
You have to login to the Pi using SSH (ssh command) , then you can run commands on the Pi.
Then you run the command sudo ip link set dev eth0 mtu 1400 (replace eth0 with wlan0 if your Pi gets access to the internet through Wifi rather than ethernet cable)
And that does it.
Test it, and if it helps, to make this permanent you can put that command in the file /etc/rc.local which is what runs on startup of the Pi"
Hopefully that is of use to someone!
lozz