tascam us 1x2 set up

[Jackd]

Able to get Instrument (Guitar) input to Ear Phones but no audio from mic input to ear phones,  And no audio from Test Tone,

Have you had a play around with the tascam settings panel software?

Under the settings tab, there are boxes to check to turn inputs on & off, select monitoring options and the sample size. My 4x4 only works with jamkazam when set to 24 samples.