@Badjester Did anyone ever help resolve this for you? I have not had lag issues for about year now but just in the last few weeks all of my cameras have a bad lag time! Most of my cameras are KC120's.

@Tony Just an update. I have been reading on how to make my guest network 2.4ghz only but haven't been able to figure out a way yet. I found one hack that says it causes the guest network to be seen...

@Tony I logged into my TP-Link app on an old iPhone 5 phone and see the same results. I normally use an iPhone 6s and an iPad Pro 12.9". My wireless network is a NetGear Orbi mesh system...

@Tony One camera that shows clips with an X on them that will not play shows a signal of -31 dBm! I have not reset any cameras yet, will I lose the clips previously uploaded? And I just discovered...

Well, I spoke too soon. Problem is still happening, just not as often. Even my camera that is very close to main router with a very strong signal. Will anyone at TP-Link address this issue????

Well, shortly after posting this all cameras started uploading all clips! No reason for it on my end, I made no changes to my systems. And no posting by TP-Link Kasa to help! Guess it is just a...