Well I was banging my head for that error that seemed to affect some of the PCs in a client’s location

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Looking at the WindowsUpdate Log locates in the %windir%\WindowsUpdate.log

I could see this

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A little bit of googlin suggested that firewall is the issue as it is blocking HTTP Redirection and Cookies

We go through a Juniper SRX to the internet

so I thought of setting the IE Proxy to the ISP proxy like below

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Surely after that I went back hit the update and voila it works

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So looking at the SRX we allowed direct access to internet from the WSUS and then everything flowed smoothly.

 

hope this could help someone or at least point him/her to the right direction.

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