@Frogan OK, that info helps. Portable External drives can be a problem, but that is not your case. Using Windows as well, and mapping the drive. I assume you've used NET USE to do that or have used...

@Frogan What is the ROUTER model? F/W version on it? How are you copying files over to the drive? What OS are you using? Is the Drive formatted in NTFS or something else? Is the External drive...

@AJ9891 AJ9891 wrote After turning smart connect on and then back off I no longer have any 5g wifi networks. Any help would be appreciated How are you able to determine this? Usually Smart Connect...

@RLDNKD I assume this is your manual, Archer A9 V6 manual and you followed the instructions on Section 1.2. Only FTP is available, unless you use the Port 21 via a Browser. What were trying and how?...

@josephb57 I don't ever recall Tether doing that? I'll take your word in it though. Usually it is the ROUTER that does that, either by doing a speed test on it or you entering the value on the QoS...

@Markmv When you use Smart Connect, the router and device 'talk to each other' and determine the best band to use. Usually, but not always, this will be the band the device's 802.11 speed is designed...