CC remote service techs get this one every day. Samsung and Visio either work or they don't. 7 times out of 10 when a customer calls about connectivity issues with a Samsung device, they will get an hour of trouble shooting and a referral to OEM. My advice, move TV close to Modem, hardwire into it long enough to update the software and it should connect. Samsung has a default answer to contact your ISP on all issues related to connectivity and they do little to describe the need to update their software as the first step in troubleshooting a WIFI connectivity issue.