Clipping at all inputs

So I’m having some trouble with my UR44.

When trying to record guitar, even with the gain (on any of the front channels) on 0, I clip both at the interface, and on the meters in REAPER. I have added a di box and tried the -15 pad and it STILL clips. This makes the interface largely useless as I am a guitar player mainly, and I’m pretty fed up. HELP?

Hi Michael
What does it look like in DspMixFX?