User has a Macbook Pro that will only attach to a single access point in the building and will not roam from one access point to another. There are 1700 devices that work just fine and are very mobile. This device drops the connection and shows that WIFI is on but not connected. Attempts to connect pops up the connection and asks for a password but will not accept it with an error invalid password. I have tested it as well in other buildings which all use the same wireless access SSID and pw. It will connect to the first access point it finds in the building but will not roam to another.
I updated the OS to High Sierra to see if that would make a difference but the results have been the same.