After about 30 minutes of fiddling around with various settings, I was able to figure out what the problem was.Here’s how to connect to your wireless router if you are getting this message.
Then go to "authentification" tab and untick the box saying "Enable IEEE802.1x to the availiable network" and that should solve your problem Graham UKRight, Graham's solution worked for me.
Open Internet Explorer and enter the router's IP address into browser's address bar as though it was a website.* You should then reach the login page to the router's setup screens.
The User name will probably be "admin" (without the quote marks) but the password can vary according to the brand of router **.
Jeffrey Edson published a positive review of the RN202 on his personal blog and will also be putting it on as well.
The reviewer called the device “really well-rounded” and said it “runs flawlessly for media transcoding.” Windows Central included the EX7000 in their list of best Wi-Fi extenders for improving coverage in the home.