[Elecraft] Issues Using IK3S nternal Sound Card for FT8

[Lee Murrah]

I have been using the SignaLink external sound card with my K3S for FT8.  I am running Windows 10 and controlling the radio and PTT with Ham Radio Deluxe.  It worked well that way.  However, a couple of days ago there was a thread on using the internal sound card, and I decided to try it.

I have the single USB cable hooked between the radio and the computer.  Is that the only connection required?  I have the computer and WSJT-X set to USB CODEX both input and output.  Decoding and the PTT are working.  When I click tune or Enable transmit to send CQ, the rig goes into transmit, and the ALC indicates signal out.  However, a second later the transmission ceases.  I had already discovered the microphone privacy setting issue and fixed that problem.  

Any suggestions on what I might be doing wrong?

Lee, KV5M