How do I reset my ex6200v2 extender with my new router

[Jamrak]

I can’t add my new router to my extender and I’ve tried to restate it.

[StephenB]

The simplest approach is to set up your router to use the same WiFi network name and passphrase.  Then all your devices (including the extender) should connect as they did before.

Or you can connect to extender's wifi and access the web ui with www.mywifiext.net.  Then reconfigure the wifi network name and passphrase.