Since upgrading to Tahoe, I can't log into my bank using Safari. I can log in using Chrome. Any solutions?

When I try to log into my bank with Safari I get a message that the system can't log me in right now. I CAN log in using Chrome, but don't want to. This began after the update to Tahoe. I haven't had any issues with any other websites. I've turned off Ad Guard when I visit the site, but that didn't fix the issue and I don't see any settings that would prevent me from logging in. Any ideas?