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Thanks for the info. &nbsp;Disabled.
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Thanks resolver1.<br />
Cheers!<br />
--Rob
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Can anyone explain in lamens terms what this means? should i action this or just leave it? <br />
<br />
Receive Window Auto-Tuning Level<br />
<br />
Receive Window Auto-Tuning Level is set to normal. To disable Receive Window Auto-Tuning Level, click Start, and in<br />
the Search box type &quot;command.&quot; in the results, right-click Command Prompt, and then click Run as administrator. At<br />
the command prompt, run the following command:<br />
netsh int tcp set global autotuning=disabled<br />
For more information, see:<br />
Information about the TCP Chimney Offload, Receive Side Scaling, and Network Direct Memory Access features in<br />
Windows Server 2008<br />
<a href="http://go.microsoft.com/fwlink/?LinkId=189029" rel="ugc">http://go.microsoft.com/fwlink/?LinkId=189029</a><br />
Mail flow to certain domains does not work when you run Exchange Server 2007 on a Windows Server 2008-based<br />
computer<br />
<a href="http://go.microsoft.com/fwlink/?LinkId=189028" rel="ugc nofollow">http://go.microsoft.com/fwlink/?LinkId=189028</a>
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Can anyone explain in lamens terms what this means? should i action this or just leave it? 

Receive Window Auto-Tuning Level

Receive Window Auto-Tuning Level is set to normal. To disable Receive Window Auto-Tuning Level, click Start, and in
the Search box type "command." in the results, right-click Command Prompt, and then click Run as administrator. At
the command prompt, run the following command:
netsh int tcp set global autotuning=disabled
For more information, see:
Information about the TCP Chimney Offload, Receive Side Scaling, and Network Direct Memory Access features in
Windows Server 2008
http://go.microsoft.com/fwlink/?LinkId=189029
Mail flow to certain domains does not work when you run Exchange Server 2007 on a Windows Server 2008-based
computer
http://go.microsoft.com/fwlink/?LinkId=189028

Best practice analyser report shows: Receive Window Auto-Tuning Level

Transmission Control Protocol/Internet Protocol (TCP/IP) is the set of networking protocols that define end-to-end connectivity specifying how data should be packeted, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved.

TCP/IP

Windows Server 2008 and Windows Server 2008 R2, based on the Microsoft Vista codebase, is the last 32-bit server operating system released by Microsoft. It has a number of versions, including including Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Storage; new features included server core installation and Hyper-V.

Windows Server 2008

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).