Yep,same here. Ever since the planned outage/update last week I've not been able to reliably connect to hosted devices. Gives me a login screen, goes to status page (with empty fields), then bounces me back to the login screen every time. Also the Android app won't let me login at all. I've got customers screaming out for me to do some remote config changes and there's nothing I can do about it. I love it when an update breaks things that were working fine before.
Edit: It turns out RMS works fine through Chrome but not with Firefox. Not sure why, but it works for me.