Hello Laura_castro,

I'm here to isolate and resolve why your Navy Federal Credit Union keeps disconnecting.

First, try logging in your QuickBooks account on an incognito window. It is the best place to identify this matter as it does not keeps browsing history.

Then, wait for at least 10 minues and check to see if the account does not disconnect.

If it works, you may go back to a regular browser and  clear the cache. 

You can also switch to a different browser like Google Chrome, Mozilla Firefox, Safari, or Microsoft Edge.

If the steps above don't work, I'd recommend visiting your bank's website and check for any page maintenance notifications.

Once everything's good, you can check this reference as a guide in categorizing the downloaded transactions: Categorize transactions.

Keep me posted if you have concerns with categorization. I've got your back!