How to set up my C3700-100NAS as an access point?

[marconet]

How do I set up my router as an access point? There are no instructions in the manual how to set up access point mode on this model. Your help is much appreciated. 

[antinode]

> How do I set up my router as an access point? [...]

   I'd try the procedure at:

      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.  (Especially similar for another Netgear Cxxxx.)

> [...] There are no instructions in the manual how to set up access
> point mode on this model.

   It's not a feature on Cxxxx models (or many older routers).  But that
might not be a fatal obstacle.