With the smart hub 2go to hub manager then wireless and turn off the 5ghz network that should allow your nest connect to the 2.4ghz network. Once connected and stable then turn the 5ghz back on and nest should be ok. This is covered often on the forum
If you like a post, or want to say thanks for a helpful answer, please click on the Ratings 'Thumbs up' on left hand side.
If someone answers your question correctly please let other members know by clicking on ’Mark as Accepted Solution’.
