If you are trying to redirect traffic or change the interface for the lan-play client, the command line flag is usually --interface or -i , not "switch keys.txt".

It is a common temptation to search for "switch keys.txt download" online. However, it is important to understand the legalities:

The "switch keys.txt" file has several use cases:

Could you please either:

(e.g., "I am using the lan-play client" or "I am setting up Yuzu").

The only 100% legal way to obtain these keys is to dump them from your own physically owned Nintendo Switch. This requires a "hackable" or "unpatched" V1 Switch or a console with a modchip. Using tools like Lockpick_RCM , users can extract the keys unique to their own hardware.

0x01=Esc 0x02=1 0x03=2 ... 0x10=Q 0x11=W ...