My K55 Keyboard suddenly started causing issues on my 2 Windows 10 laptops (one dell from work and my personal Asus vivobook)
The behaviour is as follows: Shift keys no longer work yet seem to be constantly engaged as clicking on a hyperlink launches a new browser window and the arrow keys select whole words, caps lock seems to be inversed, numpad no longer works.
It also causes the scroll wheel of my mouse (trust) to no longer work and also the onboard keyboard of the laptops(s) do not work properly when the k55 is plugged in. After unplugging the keyboard and rebooting windows the laptop works normal again. The onboard keyboard shift keys, capslock and numpad work fine and the scroll wheel of the mouse also starts working again.
Behaviour is on two different laptops (win10 home and win10 pro) of different hardware vendors so that rules any laptop and windows issue out.
How can i get this keyboard to function properly again? I already reset it twice using the FN+F4 function and i downloaded the icue to update the firmware version (the upgrade was succesful but it did not solve the problem)