Tested the issue on chrome reported version 64.0.3282.167 using Windows-10 with steps mentioned below:
1) Launched chrome reported version and navigated to URL: email.ieee.org, able to see signin page
2) Provided the username and password and clicked on "sign in" button
3) Observed "Server error" page

@Reporter:
Please find the attached screencast for your reference, if possible could you please try to provide the test credentilas to login in to the site which helps in further triaging the issue.

Thanks!

Deleted: 813336.mp4 2.5 MB

	813336.mp4 2.5 MB View Download

Thanks you for your efforts and reply,

As just a ordinary user, I have no way to generate a test account, and I am not going to publish my IEEE password.  I will see if I can work my way through the IEEE bureaucracy to find someone who can create a test account.  

This problem has to be something to do with how Gmail + Chrome handles multiple parallel Gmail account logins.  It just occurred to see what would happen if without logging out of any other Gmail sessions on this computer, I tried to access IEEE Gmail though a Incognito Window.  That works fine too, providing another workaround, so it has something to do with other simultaneous Gmail sessions, and how Gmail / Chrome manages these.  But note again all of this worked fine together prior to Saturday morning when I booted this machine after being off almost a week.  

Someone changed something somewhere.  Could be in Chrome, Gmail, or the IEEE custom login, but not likely Windows since Update History in Windows Update shows no updates installed since the 9th Feb.  However I have also observed that not all Windows updates show up there, since Microsoft sometimes "secretly" installs critical security updates and never records them in Update History.  But since they do record these in Control Panel > Programs and Features > Installed Updates, I checked there too.  There was one "secretly" install when I booted this machine on the 17th: KB4073543, but according to Microsoft, at https://support.microsoft.com/en-us/help/4073543/updates-to-windows-10-version-1703-update-components-january-29-2018, they claim these are only improvements in The Windows Update facilty, which in my experience needs a a lot of improvements based on recent problems.  However I see nothing there that should relate to or  impact this problem.  

Thank you.

Jim d.

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	successfulLoginUsingChromeIncognitoWindowForIEEE-Gmail.jpg 128 KB View Download

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Thank you for providing more feedback. Adding the requester to the cc list.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Have you tried logging in using an incognito window?

I'd also try removing all cookies associated with (ieee.org) in chrome://settings/siteData?search=cookies

 dtapu...@chromium.org

Please see above screenshot, posted yesterday about 12:48 UTC:

successfulLoginUsingChromeIncognitoWindowForIEEE-Gmail.jpg 

I am still trying to find someone at the IEEE who can provide test credentials. 

Thank you.

Jim d.

jim@ So being that you can log into it using an incognito window it means that some storage on your computer is preventing it from happening. Did you try removing the cookies I indicated?

It also means that a test account will unlikely reproduce it and probably others aren't having this issue. 

dtapu...@chromium.org,

Thank you, but no I can't try that with cookies until I go home tonight and get out that computer again to power it up.  I will remove the cookies and see if that solves the problem.  Either way I will let you know.  

Thank you for you help.

Jim d.

OK, I tried removing all ieee.org cookies on Two machines.  The one at home continued to fail in the same way.  So I decided to see if there was any machine dependency, and just logged out of the IEEE e-mail window on one machine here which was still logged in on one of several different Gmail windows [Gmail for work, personal, local chapter of a professional group].  When I tried to log back into IEEE e-mail on that brower instance, I encountered that same phenomena: enter Username and Password, hit enter, get a fresh copy of the login screen where I can enter them again and repeat ad infinitum.  Again, I went through the cookies and deleted the ones for ieee.org [I think it said there were 5], and this time decided to scroll though them all -- must have been hundreds, so it took quite a while.  Finally toward the end, found another entry which containing "ieee" somewhere in the name.  I didn't know what that is for, but just deleted it too for good measure.  No change.

The laptop at home is running Win 10 x64, 1703 like this one.  The other machine that I used to test (unsuccessfully) logging back in after logging off IEEE e-mail is running  Win 10 x64, 1709 (16299.214), but there seems to be no dependency in the OS version.  I believe all are running Chrome x64 64.0.3282.167, which Help > About Chrome tells me is the current version.  

My suspicion continues to be the IEEE changed something about how their custom login screen works, and that messed up the case where there are other browser instances already logged in to other Gmail accounts.  I know that multiple account management has always been fragile in Chrome, so I wouldn't be surprised something they did broke it for that account.  

Additional suggestions welcome.

Thank you.

Jim d.

@Reporter: Could you please try to test this issue on latest chrome stable# 66.0.3359.181 and let us know if the issue still persists. You can download latest chrome stable from URL: https://www.chromium.org/getting-involved/dev-channel.

Thanks!

Closing issue due to lack of feedback requested but not provided. If the issue still exists please open a new issue with the details requested.