The bank connections in QuickBooks Self-Employed can be an incredibly useful tool, but I know the problems it can also cause when the automatic uploads stop working. I want to ensure that you have the right direction to get this sorted out, and I'm here to help.
Tackling browser troubleshooting as SelenaN has mentioned is a good place to start. When you take steps like clearing your browser's cache, it ensures that there are no temporary internet files that could be impacting QuickBooks's cloud platform. Although the article she's shared is primarily tagged for QuickBooks Online, I want to assure you that you can use it for QuickBooks Self-Employed as well since what you'll be focusing on from the article are the steps for your browser.
If that's still not doing the trick, I recommend connecting with a member of our support team so that we can take a closer look at this with you by discussing what bank connection is impacted, checking if you have any error codes, and verifying our back-end connection statuses. Here's how you can reach out.