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Ham Radio Deluxe (HRD) won't Connect to my FlexRadio-6300 anymore

I've been running HRD with my 6300 forever, but recently, I think after an HRD update, I can no longer connect HDR to my radio. When I used to get the Error message that SMART SDR Failed to read frequency I would select Auto-detect on the COM Port drop-down and everything hooked up just fine. Now it goes through all the COM ports (COM1,3,5,6,7,8,9,105,106,107,108,109) and doesn't connect to anything. All but COM1 & 3 FlexRadio System FabulaTech Virtual Serial Ports.

Is there a help guide somewhere I can get to fix this?

I'm running:

Windows 10

SmartSDR v2.8.0

Ham Radio Deluxe


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