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two pools in two datacenters. The server deployment went without a hitch and we got everything up and running in no time flat. However, we could not sign on with a kb 2464556 Lync 2013 client to either pool. The client just complained it couldn't log on. an tls 1.2 connection request was received from a remote client application but none of the cipher Looking at the server event logs, we saw numerous SChannel errors as below: Event ID: 36874 - TLS 1.2 connection request

The Following Fatal Alert Was Generated: 45. The Internal Error State Is 552.

was received from a remote client application, but none of the cipher suites supported by the client application are supported by the server. The SSL connection request has failed. Event ID: 36888 - A fatal

A Fatal Alert Was Generated And Sent To The Remote Endpoint Server 2012

alert was generated and sent to the remote endpoint. This may result in termination of the connection. The TLS protocol defined fatal error code is 40. The Windows SChannel error state is 1205. Looking around for solutions on the web, I came across these two apparent gems: http://social.technet.microsoft.com/Forums/lync/en-US/41718327-203f-445f-8657-87b0a8545ead/lync-2013-client-signin-issue-with-lync-2013-server?forum=lyncprofile (Look towards the bottom for the answer) and http://www.logicspot.net/index.php?id=50 If you don't feel like reading the aforementioned links, the answer was to use the tls protocol defined fatal error code is 10 Regedit to disable TLS 1.2 on the Lync front-ends. This was the solution provided by MS Support. Sure enough, doing that fixed the problem, but as noted in the links above, this broke Windows Update. To get Windows Update to work, you would have to remove the registry entry, restart the server, run Windows Update, re-add the registry entry and reboot the server once more. Since this was a brand-new Lync deployment on brand new Windows 2012 servers, I had a hard time believing this was the only fix for the problem. Since the problem was affecting two independent pools, I figured there must be some common feature shared between them causing the issue. After much flailing about, I turned my attention to the recently installed Windows Certificate Authority installation. Another consultant had installed a CA for the company in preparation for Lync. Comparing against known good installations, we noticed the signature hash algorithm used for the root certificate was SHA512, but other working deployments used SHA256 or lower. We reissued the root certificate using SHA256, and installed new certificates on the Lync front-ends using this hash algorithm. After a server restart, clients were able to log on successfully, and the SChannel errors went away. I'm not a cryptography expert,

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The Tls Protocol Defined Fatal Error Code Is 10. The Windows Schannel Error State Is 1203

Windows games Windows phone games Entertainment All Entertainment schannel 1203 Movies & TV Music Business & Education Business Students & educators kb2975719 Developers Sale Sale Find a store Gift cards Products Software & services Windows Office Free downloads & security Internet http://ucken.blogspot.com/2013/12/schannel-errors-on-lync-server.html Explorer Microsoft Edge Skype OneNote OneDrive Microsoft Health MSN Bing Microsoft Groove Microsoft Movies & TV Devices & Xbox All Microsoft devices Microsoft Surface All Windows PCs & tablets PC accessories Xbox & games Microsoft Lumia All https://support.microsoft.com/en-us/kb/2464556 Windows phones Microsoft HoloLens For business Cloud Platform Microsoft Azure Microsoft Dynamics Windows for business Office for business Skype for business Surface for business Enterprise solutions Small business solutions Find a solutions provider Volume Licensing For developers & IT pros Develop Windows apps Microsoft Azure MSDN TechNet Visual Studio For students & educators Office for students OneNote in classroom Shop PCs & tablets perfect for students Microsoft in Education Support Sign in Cart Cart Javascript is disabled Please enable javascript and refresh the page Cookies are disabled Please enable cookies and refresh the page CV: {{ getCv() }} English (United States)‎ Terms of use Privacy & cookies Trademarks © 2016 Microsoft

Edge - Schannel EventID 36888 By Administrator | July 21, 2015 - 22:55 | December 24, 2015 General, Info, Skype Business / Lync Server Found an interesting article giving a nice look into why the error "Schannel EventID 36888" consistently appears in https://www.leedesmond.com/2015/07/tip-1517-skype-business-edge-schannel-eventid-36888/ the Windows SYSTEM log: A fatal error was generated and sent to the remote endpoint. https://www.experts-exchange.com/questions/27261517/Schannel-Error-with-Microsoft-Lync.html This may result in termination of the connection. The TLS protocol defined fatal error code is 10. The Windows Schannel error state is 1203. This is found to affect Skype for business / Lync Server holding Edge server roles and can impact other Windows Server with detailed SChannel logging enabled. REFERENCES How to enable Schannel event logging in IIS (link) fatal alert #Skype4B #Lync #ITPros Follow me for all the buzz -> @_leedesmond (Twitter)! Bookmark the permalink. « TIP 1516 (PowerShell DSC): Access Denied in Workgroup Environment Zurich Kurs/Course: Definitiv Start in 2 Wochen (Do. 13.08.15): PowerShell v5 Basics » Leave a Reply Cancel replyYou must be logged in to post a comment. RT @ScriptingGuys: PowerShell regex crash course – Part 2 of 5: Summary: Thomas Rayner, Microsoft Cloud and Datacent... https://t.co/fUBi9g… h J R _leedesmond - October fatal alert was 8, 2016, 12:06 pm RT @swissitpro: Monthly free #Zurich Swiss IT Pro #Usergroup #meetup Next Tue 11 Oct 2016 1800hr #Cloud #Datacenter #PowerShell #SIG https:… h J R _leedesmond - October 6, 2016, 1:58 pm RT @hitchysg: It's the little things ... credit to @SzumigalskiS. #psconfasia is nearly here! @PSConfAsia https://t.co/GbPLdpfvXH https://t… h J R _leedesmond - October 4, 2016, 1:45 pm RT @binitamshah: mimikittenz : A post-exploitation powershell tool for extracting juicy info from memory : https://t.co/QfteHMRj4X https://… h J R _leedesmond - October 4, 2016, 1:45 pm RT @hitchysg: The Microsoft Grove #IoT kit that we are giving away at #PowerShell #psconfasia has arrived! Come to https://t.co/GbPLdpfvXH… h J R _leedesmond - October 3, 2016, 2:49 pm ARCHIVES ARCHIVES Select Month October 2016 September 2016 August 2016 July 2016 June 2016 May 2016 April 2016 March 2016 February 2016 January 2016 December 2015 November 2015 October 2015 September 2015 August 2015 July 2015 January 2015 CATEGORIESCATEGORIES Select Category Cloud / Azure / Office365 Datacenter / Hyper-V Event / Conference Feature General Info IoT Office 2016 / 2013 / Skype / Lync PowerShell Skype / Lync / iOS Mobile App / Phone Edition Skype Business / Lync Server Training / Course / Book / Article Windows Client 10 / 8.1 / 7 Windows Server All Rights Reserved. Copyright @ nnnn-2016 leedesmond.com

for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups Website Testing Store Headlines Experts Exchange > Questions > Schannel Error with Microsoft Lync Want to Advertise Here? Solved Schannel Error with Microsoft Lync Posted on 2011-08-17 MS Applications Chat / IM Office / Productivity 1 Verified Solution 3 Comments 3,294 Views Last Modified: 2012-05-11 On many of our user workstations after the lync clients is installed, we recieve many instances of this error: Log Name: System Source: Schannel Date: 8/17/2011 12:43:08 AM Event ID: 36888 Task Category: None Level: Error Keywords: User: SYSTEM Computer: XXXXXXXXX Description: The following fatal alert was generated: 10. The internal error state is 10. Event Xml: 36888 0 2 0 0 0x8000000000000000 22614 System XXXXXXXX 10 10 Does anyone know what this means? Any solutions? 0 Question by:delpt Facebook Twitter LinkedIn Google LVL 10 Best Solution byjayca KB 2464556 Go to Solution 3 Comments LVL 8 Overall: Level 8 Chat / IM 4 MS Applications 3 Office / Productivity 1 Message Expert Comment by:djjackfrwmml2011-08-17 Try this, it may work for you. Schannel has to do with secure transmissions a

 

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fatal alert error p Kumar PandayOctober There have been many occasions where a event corresponding to SChannel is logged in the System event logs which indicates a problem with the SSL TLS handshake and schannel fatal alert error state many a times depicts a number The logging mechanism is a schannel fatal alert internal error state part of the SSL TLS Alert Protocol These alerts are used to notify peers of the normal schannel fatal alert internal error state and error conditions The numbers especially play a trivial role in understanding the problem failure with the SSL TLS handshake SChannel

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