Hi Vatsalk, Welcome to the community. I understand we are facing issues with the wireless connectivity on the system. Please check the link below which would be helpful in resolving this issue: [URL] Kindly perform these steps and let us know the results of the same so we can advise you further. Also, perform a Component Test on network card using the link mentioned below: [URL] Please keep me posted with the results. Thanks & RegardsManshu S#iworkfordell
i have dell inspiron 15r N5110 windows 7 64 bit laptop. Issue with my wifi is that I have to disconnect and reconnect my connection in every 2-3 minutes to browse internet. I have re-installed the driver many times.. CAN YOU PLEASE HELP ME WITH THIS AND PLEASE TELL ME WHICH DRIVER is best suited ???????????????????? 
dell inspiron 15r n5110 WIFI ISSUES