WHAT IS WLAN ISOLATION

Wireless  Isolation, sometimes called client isolation, is a setting on a  wireless router. When this setting is enabled it prevents a computer  that is connected to the network by a wireless connection from accessing  computers and resources that are connected to the network by a wired  connection. It will also prevent one wirelessly connected device from  connecting to another wirelessly connected device. In essence Isolating  that device on the wireless network. 

This is used as a method of security so that you can provide both wired  and wireless connection through the same network without opening up  secured computers and resources to potentially unwanted visitors. This  can be very helpful in businesses that have a wireless hotspot located  in their lobby for example. 

Without Wireless Isolation anyone on a wireless internet connection in a  wifi hotspot would not only have full access to the computers and  resources in the company’s network, but also to the various wireless  devices that were using the wifi hotspot at that time. 

Most wireless router makers will support wireless isolation in one form  or another, if you already have a router and are curious to see if it  comes with wireless isolation or not you can check your products manual,  or log into your router and check the security tab.