Hello All, I received my 6400 a couple of weeks ago and wanted to share a success story. I first set up my 6400 with the ethernet cable direct from radio to my Windows laptop in link-local configuration. The simplest of configurations that is not wireless. All worked well as expected. I ran in this mode for several days to get familiar with SmartSDR software and also because I knew any internet networking setup will be a project - most likely a major project with a lot of trouble shooting and frustrations, ip addresses, routers, cell networks, etc. So I was reluctant to dive in. But, surprisingly all went perfectly well without a single hitch - not one! I simply unplugged the ethernet cable from the Windows laptop and plugged it into an nearby Xfinity Xfi Wi-Fi extender that I happened to have in the shack. The radio was now connected to the Wi-Fi router upstairs via the extender. Then I started SmartSDR, pressed "Setup SmartLink" and registered my radio for remote logon. Once I did that everything was working from anywhere and on any device I tried. My laptop, iPad, iPhone all worked on my local Wi-Fi and also from my cellar phone hot spot, the celluar Wi-Fi hot spot in my Audi Q5 and other external Wi-Fi networks. Everwhere with a click of the "Connect" button. Amazing! The thing that I was most amazed about and incredibly pleased about was in the end I didn't have to do or know anything special! Literally just Plug and Play. Plug in ethernet cable and register radio with SmartLink. Boom! Done! I can't tell you how impressed I am. I though for sure this was going to be a 2-3 week setup project of much frustration! Nope! With SmartLink it was literally a breeze and took maybe 10 min. Maybe I just got extremely lucky, don't know. But so happy, dan WA1QZX.