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Microsoft, SBS 2008, Service Pack 2, Service Pack 2, Service Pack 2, Service Pack 2, Small Business Server 2008, Windows, Windows Server 2008, Windows Vista

Udfs.sys – Pre Service Pack 3 Revision History for Windows Vista SP2, Windows Server 2008 SP2 and Windows Small Business Server 2008 (SBS 2008)

Udfs.sys – Pre Service Pack 3 Revision History for Windows Vista SP2, Windows Server 2008 SP2 and Windows Small Business Server 2008 (SBS 2008)

07-May-2012 – 6.0.6002.22848 – Udfs.sys – http://support.microsoft.com/kb/2710785 – The computer stops responding when you copy files to a Blu-ray Disc in Windows Vista SP2 or in Windows Server 2008 SP2

03-Feb-2011 – 6.0.6002.22582 – Udfs.sys – http://support.microsoft.com/kb/2411000 – You cannot read or copy a file that contains an asterisk character in the stream name in Windows Vista, in Windows Server 2008, in Windows 7 or in Windows Server 2008 R2

22-Nov-2010 – 6.0.6002.22530 – Udfs.sys – http://support.microsoft.com/kb/982941 – You cannot browse any data that is written to a DVD-R disc in Windows Vista or in Windows Server 2008 after you eject and then reinsert the disc

11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 21, 22, 23, 330, 505, 510, 520, 530, 810, 820, 830, Apple, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP4, CSP5, CSP5, CSP5, CSP5, CSP5, CSP5, CSP5, CSP6, CSP6, CSP6, CSP6, CSP6, CSP6, CSP6, CSP7, CSP7, CSP7, CSP7, CSP7, CSP7, CSP7, CSP8, CSP8, CSP8, CSP8, CSP8, CSP8, CSP8, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, FireBox, Internet Explorer, Internet Explorer 8, Internet Explorer 9, Microsoft, Safari, System Manager, Watchguard, WSM, XTM

Watchguard XTM Firewall UTM Device – Cannot browse some sites and logs report GAV job open failed (failed to connect to scand at scand)

Cannot browse some sites and logs report GAV job open failed (failed to connect to scand at scand)

You may find that you cannot access or browse some websites when you are using a Watchguard XTM Firewall or UTM device and the GAV (gateway antivirus) is enabled.  When you review the appliance logs you see the following event logged GAV job open failed (failed to connect to scand at scand).  In this instance the anti-virus proces or component of the XTM device has probably crashed or stopped responding.

Resolution/Workaround:

You might be able to permantently resolve this issue by upgrading to a newer XTM OS i.e. 11.4.2 to 11.5.2 or you may simply need to apply the latest CSP release for the XTM OS build you are using i.e. 11.4.2 CSP9 (Service Pack).  Newer OS releases and Service Packs often included fixes for these sorts of GAV issue.

A workaround would be to schedule a reboot of your Watchguard XTM appliance, this will reset the GAV (gateway antivirus) and should allow pages to load correctly again.

11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.4.2, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.1, 11.5.2, 11.5.2, 11.5.2, 11.5.2, 21, 22, 23, 330, 505, 510, 520, 530, 810, 820, 830, Cisco, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP1, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP2, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP3, CSP4, CSP4, CSP4, CSP5, CSP5, CSP5, CSP5, CSP5, CSP5, CSP5, CSP6, CSP6, CSP6, CSP6, CSP6, CSP6, CSP6, CSP7, CSP7, CSP7, CSP7, CSP7, CSP7, CSP7, CSP8, CSP8, CSP8, CSP8, CSP8, CSP8, CSP8, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, CSP9, Microsoft, SBS 2008, SBS 2011, Service Pack 1, Service Pack 1, Service Pack 1, Service Pack 1, Service Pack 1, Service Pack 1, Service Pack 1, Service Pack 1, Service Pack 2, Service Pack 2, Service Pack 2, Service Pack 2, Small Business Server 2008, Small Business Server 2011, Watchguard, Windows, Windows 7, Windows Server 2008, Windows Server 2008 R2, Windows Vista, XTM

HTTP and HTTPS requests or traffic to a Windows Vista, Windows 7, Windows Server 2008, SBS 2008, Windows Server 2008 R2 or SBS 2011 machine may exhibit increased latency if the connection is through a network load balancer

If you utilise Microsoft Internet Information Services IIS or an application that uses the System.Net.HttpListener class is installed or running on one the operating systems below, and you have a Network Load Balancer then you may find that Increased latency occurs on HTTP and HTTPS requests and traffic.

This issue occurs because the HTTP and HTTPS requests from clients can include zero length data in the SSL records, certain server-side variables do not update correctly in this instance and Http.sys leaves the connection in the CLOSE_WAIT state.  This intern exhausts the open connection limit can introduce latency, timeouts and connection problems.

Affected Operating Systems:

Microsoft Windows Vista

Microsoft Windows 7

Microsoft Windows Server 2008

Microsoft Small Business Server 2008 – SBS 2008

Microsoft Windows Server 2008 R2

Microsoft Small Business Server 2011 – SBS 2011

The Microsoft Knowledge Base Article KB 2634328 includes further information on this issue and provides an updated version of Http.sys that corrects the issue http://support.microsoft.com/kb/2634328