Windows 7: ipconfig /release ipconfig /renew fail

So I was messing around on my laptop yesterday trying different things one of them being able to get a new ip address. I read /release /renew did this however I was mistaken. ipconfig /renew does not work because my media is disconnected. I essentially seem to have lost my ip address and am having trouble getting it back. I can connect to my router and other unsecured routers around my residence however I cannot use use the internet unless I am directly connected to the modem by an ethernet cable. I have tried manually typing in the Internet Protocol Version 4(TCP/IPv4) with the info shown in ipconfig /all however it does not appear to work. Does anyone have any suggestions or reccomendation?

Also when I connect to the router the error that shows up is that my DNS server is not available