@Tony I have an M9 and can acces the web UI using the router's IP, but there are very limited options. The time zone settings are only available via the web UI on the M9 (last I checked). Thank you...

@TennSC You can visit tplinkdeco.net in your web browser to access the web UI of the Deco units. If that doesn't work, the default IP address of the Deco unit should be 192.168.0.1. You can enter...

@PhotoSawyer Thank you! I went through the steps to update the time and it worked! Thank you @Tony !

@JTSo Thanks for your reply, this is helpful. Are you in a time zone which observes daylight savings time?

@Tony Thank you for your reply. I found and followed the FAQ you provided during my troubleshooting prior to submitting my original post. Following the FAQ and changing the region DOES NOT WORK to...

The time on my Deco M9 Plus mesh system is off about 5 hours. I confirmed that the continent and region are correct in the web UI. I am located in Denver Colorado which observes daylight savings...