Problem solved, I got tired of piece mealing the problem and performed a "clean Windows install". Every thing works great no more problems.
I have a Inspiron 17R5720 with a N2230 adapter using Windows 7 laptop. I purchased this new 12/2013 and never had a problem with the wireless until now (of course just after the warranty expired). My problem is I cannot connect to the internet using wireless, I receive a message "No connections are available". My other PC connects wireless no problem and my 17R connects with the cable no problem. I have updated all software. When I ran Dell's diagnostic check it only showed "Memory Module 20 test failed", when I checked the N2230 driver card showed (code 52) and isn't using any resources because it has a problem. Could my memory test failure be causing my N2230 problem. I have been doing a lot of reading online and it appears that the N2230 adapter is not the most reliable piece of equipment and does anyone know what a code 52 is?
No wireless connections available Dell 17R5720 with a N2230 Adapter