Hi Metalhunter, How about other computer? Only this Windows 7 SP1 got the issue? Is the issue regarding the use of a certificate that are failing? Is this issue regarding an application or service that relies on certificates? In order to find which process result this error, I suggeset you use the Network Monitor to caputer the network trace both on the problematic computer and the working one. Please download the NetMon from http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=4865 After you capture the trace, upload them to your SkyDrive, put it in a public folder and reply a folder link here, I'll check it later. Before analyzing the network trace, please also compare the following keys between the working and non-working clients: HKEY_LOCAL_MACHINES\System\CurrentControlSet\Control\Security Providers\SCHANNEL DisableRenegoOnClient DisableRenegoOnServer AllowInsecureRenegoClients AllowInsecureRenegoServers UseScsvForTls Additionally, when certificate negotiation process got failed could also cause this issue. We can check it in the network trace. Regards, Miya TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tnmff@microsoft.com This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hello I encounter the follow error when surfing to a https website: Schannel error 36887 fatal error 40. The details of the event are: - <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> - <System> <Provider Name="Schannel" Guid="{1F678132-5938-4686-9FDC-C8FF68F15C85}" /> <EventID>36887</EventID> <Version>0</Version> <Level>2</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x8000000000000000</Keywords> <TimeCreated SystemTime="2011-09-21T09:42:02.721838100Z" /> <EventRecordID>28033</EventRecordID> <Correlation /> <Execution ProcessID="696" ThreadID="740" /> <Channel>System</Channel> <Computer>ctx-vdi0131.vmm.be</Computer> <Security UserID="S-1-5-18" /> </System> - <EventData> <Data Name="AlertDesc">40</Data> </EventData> </Event> Process ID 696 points to SamSs and Netlogon. The OS is Windows 7 SP1. The browser is currently IE 8 build 7601.17514. The security protocols SSL 3 and TLS1.2 are enabled, the others are disabled. Have someone an idea what the problem could be? Best regards,

How's it going? Please feel free to give us any update. Regards, Miya TechNet Subscriber Support in forum. If you have any feedback on our support, please contact tnmff@microsoft.comThis posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.