Have you verified your access and secret key in the AWS Web Console?

Yes

One thing I have noticed is that the access key and secret key work with the windows version of the software. The only difference seems to be that after I add the access key and secret key I have to press the Add External Bucket and put the path for the bucket to appear.

What's the message you're getting back from Explorer?

I get a box that pops up and says "Connection Failed. Check your credentials." There is a button that says details and when I press it, another small box shows an access denied message. I can send a screenshot tomorrow if you want to see what it looks like.

Do you select a bucket? If so is the bucket all lower case? Just grabbing at straws. If that doesn't help, I'll ask a solution architect to jump on the thread.

As far as I can tell in the Mac version of the software; the only option is to add the access key and secret key. Unless I’m missing something.

Hi there, did this get resolved? I'm having the same problem, my access key works on PC but not on my Mac. Are there steps to take to get the Mac version working? Thanks.