[Elecraft] K3 Utility problem

[Fred Jensen]

I decided to check for new firmware and the K3 Utility gives me an error 
when I select the COM port [COM4] connected to the radio:

SetupComm failed on 'COM4'
Error=87: The parameter is incorrect

This worked fine the last time I used it maybe two months ago.  I know 
the CAT line to the computer is working OK because N1MM gets the radio 
frequency and knows the radio is there.

Any help?

73,

Fred K6DGW
Auburn CA