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SharePoint Portal pages are taking time to load. RRS feed

  • Question

  • The network where SharePoint Portal located is isolated from Internet. SharePoint Portal was working fine before. Now the SharePoint Portal pages are taking time to load.

    Getting the following error in Fiddler while accessing SharePoint Server Pages. After sometime Page gets loaded. Can I  ignore the below errors. Central Admin is working fine without any delay (http). The portal which is on 443 (https) is having issue. 

    DNS lookup for "ssw.live.com" failed (Trying to access http://ssw.live.com/uploaddata.aspx)

    DNS Lookup for "ssw.live.com" failed. System.Net.Socket.SocketException This is usually a temporary error during hostname resolution and means that the local server did not receive a response from an authorative server

    DNS Lookup for "ent-shasta-rrs.symatec.com" failed. System.Net.Sockets.SocketException no such host is known

    DNS Lookup for "v10.vortex-win.data.microsoft.com" failed. 

    DNS Lookup for "setting-win.data.microsoft.com" failed. 

    DNS Lookup for "ieonline.microsoft.com" failed. 
    Tuesday, September 26, 2017 12:17 PM

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