Tag Archives: Internet Explorer

412 Cookies are disabled

This blogpost is more a note to self, but sigh, I hate it when it does this…. show the 412 Cookies are Disabled error message when trying to open the Exchange Admin Center (EAC) in Exchange Online:

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I’m not sure if this issue shows up every time, but at least it shows up when you want to configure an Exchange Hybrid Configuration and you select Hybrid in the On-Premises EAC and select Sign In to Office 365.

To solve this, select the Tools menu in Internet Explorer, select Internet Options and click the Privacy tab.

Lower the slider just one click to Low and click Apply or OK.

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Now when you refresh the page in Internet Explorer it should continue with the Hybrid Configuration page:

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Error 600 Invalid Request

It is possible to test the autodiscover configuration using a browser. But when navigating to the autodiscover URL https://autodiscover.contoso.com/autodiscover/autodiscover.xml you’ll see a 600 Invalid Request error message.

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When you click the Show All content button the entire XML package is shown:

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When you see this message your autodiscover configuration is absolutely fine! The reason you see this message is that the autodiscover service expects an HTTP POST command from Outlook, and not an HTTP GET command from Internet Explorer.

So, the service is good but the actual request that’s send to the autodiscover service is not good and therefore autodiscover returns the Error 600 Invalid Request message. So this error is good 🙂