I've just started having the 401 spam bots lockout as well. It worked again after a few minutes and a browser restart, though that might have been a coincidence. I haven't been logging in and out though, i've always left my browser logged in.
I have this.
Its stopping my laptop and my mobile phone from accessing. Im only typing this because I used a VPN to access the site.
I never log on or off either. Im always stayed logged on. No idea whats caused this issue but good to see others with the issue because it means its a problem with the site that will get sorted and not just my profile haha
Okay, I'm glad I'm not the only one! I'm pretty tech illiterate, so I've been running antivirus and generally freaking out about it, but maybe it's not all that. I need to upgrade my analog brain at some point, it's all magic and wizards to me!