We'll figure out what is wrong. I'm not at home from tomorrow till sunday, so my next answer could take a while. Important is, that you anser exactly to the questions
Ok I think that you want to do 2 different things:
1) Recording a dry signal via spdif while listening the processed signal
This we will cover next week, I'll post a screenshot with the routing. And it will be easy if the other part works.
2) Reamping: sending a dry signal from your computer to the axe and getting a processed back.
I) Ok first of all turn all output knobs on your axe fully counter clockwise, in other words turn all output knobs to OFF. This is important for not hearing the digital noise on Out1.
II) Make your connections
* one spdif cable should go from the digital out of the axe to the digital in of your audio device
* the other spdif cable should go from the digitl out of your oudio device to the digital in of the axe
III) Open your audio device driver:
* enable spdif
* set sample rate to 48000 Hz (48kHz)
* make the audio device the clock master
IV) Open your DAW (Cubase, Logic, Reaper)
* Make a loop over your guitar track
* play it
* route the output of the track with your dry guitar to the digital output of your audio device (in my case it is "Output 3", yours is different for shure)
V) Configure the axe
* In the axe fx go to the I/O-menu and select the digital input
* now the input led chain should light up according to the signal you send to it (if this happens we have the sound in the axe)
VI) Back to your DAW
* make a new track
* set it to record the digital input of your audio device (in my case it is "Input 3", yours is different for shure)
* you can't hear anything, but the track meter lights up? We're almost there and the signal is back from the axe. Set this track to monitor the input and you should hear it.
* press record
If you have any questions please refer to the roman numbers and try to give as much information as possible.
One question is left. What audio interface do you have?