How do i add my bank account to my quick books as it will not let me do it online

Hello Nigelfurey, 

Welcome to the Community page, 

When you log into your quickbooks, click on banking tab on left hand side> this will load the banking page> top right in green add account> search the bank you want to account to>follow the insturcutions and it should connect your bank. 

Which bank are you trying to connect too?