Some Microsoft Office 365 users reporting problems signing up for

Rogue, hard-to-delete cookies may be the culprit thwarting some testers from signing up for Microsoft's newly launched web mail.

A number of users attempting to sign up for Microsoft's new free email preview are reporting they are having problems that seem to be connected to their Office 365 accounts.

Peter Bright, an editor with Ars Technica, said he believed the issue to be connected with Office 365 cookies that may not be clearing correctly.



"The big problem is that O365 used the Outlook domain for some things, and it doesn't let you clear the cookies right," he said on Twitter, where I asked individuals experiencing problems to weigh in. "Because the cookies aren't cleared it refuses to let you sign up for a new account, instead directing you back to O365," Bright added.

Microsoft launched a preview of its new service on July 31. Immediately, a number of those with existing Office 365 accounts began reporting "infinite loops" which prevented them from being able to create a new account.

I asked a Microsoft spokesperson about the issue and was told users might try clearing their caches. "If they sign out and then sign back in with the correct account info, it should auto detect what account to log into," the spokesperson said.

Other theories as to what is causing the problem also seemed to center around cookies. "Appears 2 be WL Sign-In related. Went to 'clean' machine with no prior use of O365 in browser. In with WL (Windows Live) account w/no issues," said Don Sorcinelli on Twitter.

Other users said they could only get around the issue by using a different machine and/or a different browser.

"Inifinite loop when I connect to  or any service using microsoft account+ Must delete cookies to access o365," said Christophe Bossan on Twitter.

ZDNet UK reporter Simon Bisson, who is also encountering the issue, said Microsoft engineering is looking into it. In his case, his Microsoft Account uses his Office 365 mail address as the default.

If and when Microsoft officials have any guidance to share on this issue, I will add it to the post.

In the interim, Microsoft's team has been fielding user questions on Reddit. Last I checked, no one had asked about the Office 365 issue.

Someone did ask, however, about Microsoft's warning to Windows Phone users against completely renaming their existing addresses with ones. 

A workaround is to set up an Outlook alias, a number of Twitter folks have noted. But users who proceed and rename their existing email addresses should know the following, according to Microsoft officials on Reddit:

"You will not have to re-purchase anything. For WP7 you will need to reset your phone, and signin with the new account. You will need to reinstall all apps, but won't have to re-purchase any of them. You'll also need to go to sync settings and make sure mail is enabled."

On Windows 8 (that's what the person responding said, though I'm unclear if s/he actually meant Windows Phone 8), users who make the switch will "need to disconnect your account and then reconnect your new one, but then everything is preserved," the Microsoft team member added.

According to another answer on the same topic: "The (existing Live) account will stop syncing once you rename your account on the next sync. You would have to then reset your phone and sign in using the account. Unfortunately, this would erase your personal data as well, ouch. You can use Reinstaller to help you reinstall your existing apps."

Update: Users are continuing to try to unravel the mystery of why some Office 365 users can't manage to sign up for blogger Robert McLaws made an interesting observation on Twitter, noting that Office 365 users who want to check mail through the Outlook Web App use the URL to do so. "Once you sign into  w/ a MS Account, it redirects u to a  server," McLaws tweeted.

So perhapd this is a backend infrastructure/identity issue that Microsoft needs to address? Just a guess. Still no further information from the Softies on what's going on here.




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