Currently I am using my TP-Link WDR4300 as my router and it’s a pretty fast router and it has the possibility to install OpenWrt or DD-WRT on it. I prefer OpenWrt. What I want is to make my router a ‘Dumb AP (Access Point)’. There is a nice guide on the OpenWrt Wiki, it’s available here.
The only problem was it was not working very well, I could not connect to it anymore after I applied the settings (or I did something wrong). So, I did some research on the internet and after that research I came up with this configuration which is currently working very well.