~Set N300 router up as Access Point

> ~Set N300 router up as Access Point

   "N300" is a speed, not a model number.  Look for "Model" on the
product label.

> Model: DGN2200|Wireless-N 300 Modem Router

   Hardware version (Plain/[v1], "v3", "v4")?  Firmware version?

> I am trying to set up my old router as an AP.

   Ok.  Connecting it to what, how?

> The IP of my home router supplied by my ISP is 192.168.1.1

   Not a very detailed description of that device.

>   1. Plug ethernet cable into a port in the router

   A typical Ethernet cable has two ends.  Which "a port in the router"?

>   4. Go to Wireless settings and change the Channel to match the home
>      router. Click Apply
>   5. Go to Wireless Repeating Function setting and click the Enable
>      Wireless Repeating Function box

   Why?  Are you trying to configure your DGN2200[vX] as a wireless
access point, or as a repeater, or what?

   Visit http://netgear.com/support , put in your (actual) model number,
and look for Documentation.  Get the User Manual.  Read.  Look for
"access point".  If your router does not have an "AP Mode" option, then
you might want to see, for example:

      https://community.netgear.com/t5/x/x/m-p/1463500

That's written for a Netgear C6300-as-WAP, but the steps are about the
same for any other router (any make/model) which lacks a one-step WAP
option.  If that's what you want to do.