I appreciate your effort in reconnecting your Chase account to QuickBooks, Mengjun. Let's work together so you can get past this and continue managing your bank's data in the program.
Did you get an error message while trying to connect your second account? Any additional information or screenshot would help us address this matter accordingly. You can also explore this link to learn how to resolve QuickBooks Self-Employed (QBSE) related bank connectivity issues: Fix Bank errors and syncing problems - QuickBooks Self-Employed.
Moving on, I suggest logging into your financial institution's website or consulting with their customer care team to check for any updates, outages, or maintenance on their system. If none, log into your account using a private browser to narrow down the result. Please refer to these keyboard shortcut keys to proceed:
- Google Chrome: Ctrl + Shift + N
- Mozilla Firefox: Ctrl + Shift + P
- Microsoft Edge: Ctrl + Shift + N
- Safari: Command + Shift + N
Once you can connect your bank to QuickBooks seamlessly using the private session, go back to your regular browser and clear its cache. Clearing it would remove stored data utilities that impact the system's performance. If the issue persists, you can explore and use another supported browser.
I've also added these articles about manually uploading your bank transactions if you require urgency with managing them and then about organizing those data accordingly in QBSE:
Tag me on this thread if you have an update about the error notification you've received or need help handling your transactions, accounts, or reports. I'm always available to lend a hand.