You need to go to Wells Fargo FMS Setup. If you google "Wells Fargo FMS Setup", the first search result will be:

https://connect.secure.wellsfargo.com/auth/login/present?loginMode=jukePassword&serviceType=fms

You will need to enter your user name as password and then hit "Sign On". It will then ask to send a 6 digit code to your mobile (or other) device which you will need to enter in the box provided. Once you do this, it shows a message that you have 10 minutes to complete the bank feeds setup within the Quickbooks program.