Tag Archives: “Internet Explorer 8”

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

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

17-Nov-2009 – 6.0.6002.22269 – Usbser.sys – x86/x64 – http://support.microsoft.com/kb/925681 – When you try to download a file from the Internet by using Internet Explorer, the download stops responding

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.

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

CPU Usage may increase to 100% while you are scrolling through a Web page in Microsoft Internet Explorer 8 or Microsoft Internet Explorer 9

CPU Usage may increase to 100% while you are scrolling through a Web page in Microsoft Internet Explorer 8 or Microsoft Internet Explorer 9

This can occur if the “Use smooth scrolling” option is enabled in “Internet Options” by default the “Use smooth scrolling” setting is enabled in Internet Explorer 8 and Internet Explorer 9.

To resolve the issue you just need to disable/untick the “Use smooth scrolling” option in Internet Explorer by following the steps below

  1. On the “Tools” menu in Internet Explorer, click “Internet Options” then click the “Advanced” tab
  2. Click to untick the “Use smooth scrolling” check box as shown in the screenshot below

The Microsoft knowledge base article KB 885355 http://support.microsoft.com/kb/885355