wps button not on an Arris T6862R modum

> wps button not on an Arris T6862R modum.

      https://en.wikipedia.org/wiki/Modem

   Where did you look?  "TG862R" (which is actually a modem+router)?

   Why ask about it on a Netgear forum?

      https://www.surfboard.com/products/xfinity-subscribers/tg862r/

   There's a picture in the User Guide and in the Quick Start Guide.
Look for "WPS".