If you want to setup netgear wireless router without installation disc then follow this article,Netgear Wireless Router: How to Setup Without Installation Disc.
Follow the given steps to configure your netgear wgr614 v6.
Step1: Open your Web browser and then type 192.168.1.1 in the address field. Click "Enter."
Step2: Click "Basic Settings." Input the configuration information given to you from your ISP in this screen. The settings not given by your ISP can likely be left at their default value. Click "Apply" before navigating away from this screen.
Step3: Click "Wireless Settings" in the menu on the left side of the screen. Enter or select the appropriate settings in the Wireless Settings dialog. Select the appropriate Security Options, then generate the security key. Click "Apply" before navigating away from the Wireless Settings dialog.
Step4: Reboot the router for the changes to take effect.
Firewall set up can easily block unauthorized access from the internal network.If you want setup firewall connection with your netgear router then follow this blog-How to Configure a NetGear Firewall,which i have discussed in same blog.
If you are facing problem with your netgear Router Setup and Configuration, You can reach V tech-squad online technical support at their Toll Free No +1-877-452-9201.