UR22 clipping with HiZ and passive guitar

As it is adverted to accept guitars straight in ,I just bought a UR22 for recording my guitar in combination with a software amp simulator .

Fact is it doesn 't work .

With HiZ triggered horrible clipping occures even at the lowest preamp level.
Without HiZ the sound id muffed out , dead and lacks of dynamic.

I guess i have to buy an extra piece of hardware to tam out the signal ,
but i don’t want to go into guess and try , lose time, money and energy just to get that interface
to work as it is adverted to .

Now i have to deal with the seller to send it back , great thanks for all.