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drwltdFlag for United Kingdom of Great Britain and Northern Ireland asked on

Unable to login to Microsoft portal

Hi, I am trying to connect to portal.microsoftonline.com which redirects to https:\\login.microsoftonline.com.

Outside the office this works fine but in the office I just get a blank screen. I have no messages on the firewall to indicate that it is blocking anything. The problem occurs with any machine in the office and as far as I know this is the only site that has this problem.

Would appreciate some help on this.
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8/22/2022 - Mon


try drtcp and reduce the mtu size to 1250

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go to event logs at your pc and have a quick look there

Found that someone was selectively forwarding ports from the router to the firewall
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