Got problems connecting my bank (barclays). I already connected other banks as lloyd's and revolut with success.

Hi alberto-mizzotti,

Thanks for your post and welcome to the QuickBooks Online Community. 

Its great to see you were able to get those two accounts connected, to resolve the issue you are having with the Barclays account can I verify if you receive an error code/message when connecting and the account type you have (i.e Business or Personal, Current, Savings).