UPDATE for those who didn't see it in the other portal: WORK AROUND UNTIL FIX LANDS: UPDATE: WORKING THEORY on Source of the Bug "Doc Type Not Set Correctly..." I noticed when digging in that it complained in Chrome over "quirky" mode. It reads out when I use the web-dev console tools: *Page layout may be unexpected due to Quirks Mode One or more documents in this page is in Quirks Mode, which will render the affected document(s) with quirks incompatible with the current HTML and CSS specifications. Quirks Mode exists mostly due to historical reasons. If this is not intentional, you can add or modify the DOCTYPE to be <!DOCTYPE html> to render the page in No Quirks Mode.....* On a hunch, I "converted" the layout to simulate a touch mobile device via the browser's "dev tools" in chrome (see instructions below) It was a long shot, but if I can get bugzilla to "KNOW" what type of page it was - then maybe it would go through? I then changed it to mobile, and BOOM, instantly signed in. This might be my work around - just change the "hardware agent" and you may not have to face the RANDOM bug being denied access to bugzilla. Not sure how keeping the checkmark checked or UNcheck the "Restrict this session to this IP address plays a role here, if any... DEV TOOSL INSTRUCTIONS: FIRST before trying to sign in via Device Toggle (which is found when you press F12 or if you go to Chrome settings icon (three dots). More Tools ---> Dev Tools. And the side bar opens and you can toggle to a "mobile" touch rendered page. THIS lets you in all the time. Just confirmed again that it works today after not getting in.