[Elecraft] KAT500 Locked on Ant 1

[richard gilley]

Looking for thoughts on my KAT500 that remains locked on Ant 1, cannot change to ant 2, manually or via the Elecraft utility regardless of the mode setting,   Set configuration to a later set up still no joy.  And of course does not tune, no relay actions, no caps set or inductors shown in utility. 
I am not aware of any electrical storms in the area.

Appreciate hearing from anyone who has an idea.

Thank you all.
AD1G