Hi
I have same problem with K3/0, win-test, Windows 10, RRC-1258 MkII (version 006, firmware 2,87, bootloader1.10, hw 007) setup. I have tested remote working in same router (and via internet). I have two hard disk which I have changed , one have W7 and the other have W10. Win-test is version is 4.19.0. In this configuration W7 work 100%, but when I have W10 in use the Radio 1 window (bandmap) does not updated. When I change band in the control radio or in the remote radio, bandmap is all the time freezed. When I change band by win-test bandmap is updated, but frequency pointer is freezed (do not move), like in all situations. Local setup K3 / win-test W10 work's 100%.
I have collect comports data (VFOA idle, up, down) by Eltima serial port monitor, if somebody are interested in.
Thanks,
OH2BFP