Tried it, Binance and Poloniex still failing. Logged out and back in to WEX, worked with no issues.

Also, note that Binance changed their 2FA handler recently, "making it easier for you" by removing the need to hit Enter -- which means, if you typed the last character wrong, you get to wait a whole extra minute rather than being able to hit backspace and hit the right one, then Enter.

I find this a step backwards. Also, sometimes my 2FA doesn't work right when it's "near" a minute boundary; so, I have been "timing" my hitting Enter while watching the 2FA count down on my phone. With Binance, now I have to wait to hit the last digit. Annoying. Like the new stupid chip cards, which require you to leave it in the machine longer than the stripe, and also, the noise it makes on "success" sounds like an error!!! Awesome step forward, banking overlords!