Hello DougO,
The 179 error is a direct response from the bank server, as they believe you are signed in elsewhere. For most banks it can take a period of 15-30 minutes to recognise the logout attempt and update the server, so please try connecting after this and ensure there are no other users signed in if this is a joint account.
If you are unable to resolve the error you can try to update the password for your online bank as this will automatically log you out of all active sessions.
Thanks
