PC connected wireless cant see network devices

[ttddssrr]

C7000-100NAS and  E7000  AC1900 Extender

Windows 10 on both PCs 

The wireless PC is connected to a port on an AC1900 Extender.

I can ping wireless PC from wired PC but Windows Network on wired PC doesn't show the wireless PC.

Any suggestions

[aalexandrebeta]

First do you have AV solutions AV solution are blocking ping usually!

Do you have network isolation for your wifi devices?