I haven't been able to link my QB to my RBC business account in months. It keeps saying the security question are answered incorrectly but they are definitely correct.

Have you tried opening your QBO on any private/incognito browser?

Hi stephen-beh-hppy. It's vital you're able to connect to your bank and sync your transactions with ease. I'll be glad to point you in the right direction so you can achieve your goals with ease. I appreciate you double-checking the security questions as banking error 185 means your bank or financial institution (FI) requires more information after you enter your credentials. Here's a helpful article that shows you how to Fix bank error 185. In case you still have issues after checking out the article, I highly recommend contacting our support team for additional support. Here are our contact details: 

• Schedule a Callback or start a Chat: click (?) in the upper right in QuickBooks Online > enter "Contact support" > choose Contact Us > provide a brief summary > select Let's Talk > choose Get a callback or Start a Chat.
• Social Media: Facebook, Twitter, and Instagram.
• Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET. 

Let me know if this info helps by leaving a comment below. I'll be on standby in case you need anything else. Otherwise, I wish you a great rest of the week!