https://community.hpe.com/t5/windows-server-2003/problems-with-ms-windows-2003-server-sp2/m-p/3985505#M4095 Dear Chris,<BR />I am very sorry for so late reply, but I used to use Service Pack 1 because of problem mentioned above. I have done windows registry change according to your advise (Enable RSS - 0). It was helped me very much but probleh has not been solved for 100%. I have changed one more parameter (EnableTCPA - 0) and server is working without troubles. In case, thank you very much for your help, I have drink for you :-)<BR /><BR />Here is the solution:<BR />1. Instalation of service pack 2<BR />2. Change parameter in windows registry:<BR />HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters<BR />EnableRSS to 0<BR />EnableTCPA to 0<BR />3. Restart the server Fri, 22 Feb 2008 07:54:11 GMT TT28 2008-02-22T07:54:11Z https://community.hpe.com/t5/windows-server-2003/problems-with-ms-windows-2003-server-sp2/m-p/3985503#M4093 I am operating Proliant ML350 G5 server with 3 network adapters (LAN, WAN, ILO2) and MS SBS server (Windows 2003, SQL, ISA, Exchange). Update services are trying to install service pack 2 with following errors: ID 4373 - Windows 2003 SP 2 instalation failed and ID 20 - service pack 2 instalation unsuccessfull because of error 0x800705b3. In such casa I have installed SP 2 directly without any problem. Logs - OK, Health monitor - OK, but it is not possible to connect the server from other LAN computers - Internet, Domain login, Exchnage does not working. I can see the server on network places or connect server shared folders. Can anybody advice, where could be problem ? Fri, 20 Apr 2007 04:27:06 GMT https://community.hpe.com/t5/windows-server-2003/problems-with-ms-windows-2003-server-sp2/m-p/3985503#M4093 TT28 2007-04-20T04:27:06Z https://community.hpe.com/t5/windows-server-2003/problems-with-ms-windows-2003-server-sp2/m-p/3985504#M4094 I think I had the same problem with a pair of new DL580s. You might try disabling a Windows network setting called Receive Side Scaling as described in this KB article:<BR /><A href="http://support.microsoft.com/kb/927695" target="_blank">http://support.microsoft.com/kb/927695</A><BR /><BR />The main symptom of the problem is that you can't make inbound or outbound TCP connections, while other traffic, such as ICMP or UDP, works fine.<BR /><BR />It seems to only affect systems with SP2 and new NICs with iSCSI or TOE features.<BR /><BR />Hope it helps.<BR /> Sat, 21 Apr 2007 01:26:32 GMT https://community.hpe.com/t5/windows-server-2003/problems-with-ms-windows-2003-server-sp2/m-p/3985504#M4094 Chris Sears 2007-04-21T01:26:32Z https://community.hpe.com/t5/windows-server-2003/problems-with-ms-windows-2003-server-sp2/m-p/3985505#M4095 Dear Chris,<BR />I am very sorry for so late reply, but I used to use Service Pack 1 because of problem mentioned above. I have done windows registry change according to your advise (Enable RSS - 0). It was helped me very much but probleh has not been solved for 100%. I have changed one more parameter (EnableTCPA - 0) and server is working without troubles. In case, thank you very much for your help, I have drink for you :-)<BR /><BR />Here is the solution:<BR />1. Instalation of service pack 2<BR />2. Change parameter in windows registry:<BR />HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters<BR />EnableRSS to 0<BR />EnableTCPA to 0<BR />3. Restart the server Fri, 22 Feb 2008 07:54:11 GMT https://community.hpe.com/t5/windows-server-2003/problems-with-ms-windows-2003-server-sp2/m-p/3985505#M4095 TT28 2008-02-22T07:54:11Z