What are the three ways to set up the RE220 extender?

The extender can be set up via the TP-Link Tether app, via a web browser, or via the WPS button. For the web browser method, connect to the extender's network (TP-Link_Extender) and navigate to http://tplinkrepeater.net or http://192.168.0.254. The WPS method requires pressing the WPS button on your host router first, then pressing the extender's WPS button within 2 minutes. (Page 6)