Network mapped drive is not accessible

Question

I have a problem while mapping a network I am getting the error (Z:is not accessible Access is denied)

Everything was working till yesterday, but today that drive is not accessible. I used below command

icacls z:\ /setowner "Administrators" /T /C from cmd with Admin privillage

(z:\: Access is denied
z:\* Access is denied
)

This is only from single computer, from the rest i can access it.

Any idea? Please

I cannot add solution now (I disabled my firewall and all is fine)

Answer 1

I disabled Kaspersky firewall and it worked.