@itismeTravis Just a thought, check that "Fast Roaming is DISABLED" when you update (see note #5 below). Not sure if this is the problem, but worth a look. I agree this was very irritating because...

Interesting...I am registered through the iOS Deco App, but should that make a difference?

@Lincoln I realize the tp-link insructions recommend using a wired network, but I did my upgrade through the wireless network. Were you wired through a switch or directly to the M9 Plus? I read...

@Breizh_Zion 1. Using my WINDOWS PC, found the V2 firmware and an update utility at: "https://www.tp-link.com/us/support/download/deco-m9-plus/v2/#Utility" 2. Clicking on the WINDOWS utility link did...