Zimbra Upgrade 8.5.1 to 8.6 and facing login issue

[tapan.thapa]

Hello Team,
We have upgraded our zimbra server fom Zimbra 8.5.1 to Zimbra 8.6.0_GA_1162 (build 20150225174718) with patch 1 and after upgrade, zimbra desktop client is throwing below error.
Can you please suggest any fix?
zclient.IO_ERROR: Remote host closed connection during handshake
Display error details
com.zimbra.common.soap.SoapFaultException: Remote host closed connection during handshake ExceptionId:com.zimbra.common.zclient.ZClientException: Remote host closed connection during handshake ExceptionId:btpool0-16:1426499079439:20c7b078a3ae2df1 Code:zclient.IO_ERROR at com.zimbra.common.zclient.ZClientException.IO_ERROR(ZClientException.java:45) at com.zimbra.cs.zclient.ZMailbox.invoke(ZMailbox.java:570) at com.zimbra.cs.zclient.ZMailbox.invoke(ZMailbox.java:555) at com.zimbra.cs.zclient.ZMailbox.invokeJaxb(ZMailbox.java:550) at com.zimbra.cs.zclient.ZMailbox.authByPassword(ZMailbox.java:496) at com.zimbra.cs.zclient.ZMailbox.(ZMailbox.java:411) at com.zimbra.cs.zclient.ZMailbox.getMailbox(ZMailbox.java:348) at com.zimbra.cs.account.offline.OfflineProvisioning.newZMailbox(OfflineProvisioning.java:287) at com.zimbra.cs.account.offline.OfflineProvisioning.newZMailbox(OfflineProvisioning.java:279) at com.zimbra.cs.account.offline.OfflineProvisioning.createSyncAccount(OfflineProvisioning.java:670) at com.zimbra.cs.account.offline.OfflineProvisioning.createAccount(OfflineProvisioning.java:643) at com.zimbra.cs.service.admin.CreateAccount.handle(CreateAccount.java:64) at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEngine.java:412) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:287) at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.java:158) at com.zimbra.soap.SoapServlet.doWork(SoapServlet.java:303) at com.zimbra.soap.SoapServlet.doPost(SoapServlet.java:217) at javax.servlet.http.HttpServlet.service(HttpServlet.java:725) at com.zimbra.cs.servlet.ZimbraServlet.service(ZimbraServlet.java:206) at javax.servlet.http.HttpServlet.service(HttpServlet.java:814) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:390) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:218) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:422) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.handler.rewrite.RewriteHandler.handle(RewriteHandler.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:585) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:988) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:415) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:429) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451) Caused by: javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source) at com.zimbra.common.net.CustomSSLSocket.startHandshake(CustomSSLSocket.java:90) at com.zimbra.common.net.CustomSSLSocket.getInputStream(CustomSSLSocket.java:341) at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:745) at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361) at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387) at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397) at com.zimbra.common.soap.SoapHttpTransport.invoke(SoapHttpTransport.java:243) at com.zimbra.common.soap.SoapHttpTransport.invoke(SoapHttpTransport.java:164) at com.zimbra.common.soap.SoapTransport.invoke(SoapTransport.java:407) at com.zimbra.cs.zclient.ZMailbox.invoke(ZMailbox.java:561) ... 37 more Caused by: java.io.EOFException: SSL peer shut down incorrectly at com.sun.net.ssl.internal.ssl.InputRecord.read(Unknown Source) ... 52 more Code:zclient.IO_ERROR at com.zimbra.common.soap.Soap12Protocol.soapFault(Soap12Protocol.java:88) at com.zimbra.common.soap.SoapTransport.extractBodyElement(SoapTransport.java:354) at com.zimbra.common.soap.SoapTransport.parseSoapResponse(SoapTransport.java:313) at com.zimbra.common.soap.SoapHttpTransport.invoke(SoapHttpTransport.java:260) at com.zimbra.common.soap.SoapHttpTransport.invoke(SoapHttpTransport.java:164) at com.zimbra.common.soap.SoapTransport.invoke(SoapTransport.java:407) at com.zimbra.common.soap.SoapTransport.invokeWithoutSession(SoapTransport.java:393) at com.zimbra.cs.account.soap.SoapProvisioning.invokeRequest(SoapProvisioning.java:342) at com.zimbra.cs.account.soap.SoapProvisioning.invoke(SoapProvisioning.java:350) at com.zimbra.cs.account.soap.SoapProvisioning.createAccount(SoapProvisioning.java:493) at com.zimbra.cs.offline.jsp.JspProvStub.createOfflineAccount(JspProvStub.java:94) at com.zimbra.cs.offline.jsp.ZmailBean.doRequest(ZmailBean.java:151) at com.zimbra.cs.offline.jsp.FormBean.doRequest(FormBean.java:156) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.sun.el.parser.AstFunction.getValue(AstFunction.java:127) at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:206) at org.apache.jasper.runtime.PageContextImpl.evaluateExpression(PageContextImpl.java:1001) at org.apache.jsp.desktop.accsetup_jsp._jspx_meth_c_when_6(Unknown Source) at org.apache.jsp.desktop.accsetup_jsp._jspx_meth_c_choose_0(Unknown Source) at org.apache.jsp.desktop.accsetup_jsp._jspService(Unknown Source) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:109) at javax.servlet.http.HttpServlet.service(HttpServlet.java:814) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:389) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:486) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:380) at javax.servlet.http.HttpServlet.service(HttpServlet.java:814) at com.zimbra.webClient.servlet.JspServlet.service(JspServlet.java:64) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) at com.zimbra.cs.servlet.SetHeaderFilter.doFilter(SetHeaderFilter.java:79) at com.zimbra.webClient.filters.SetHeaderFilter.doFilter(SetHeaderFilter.java:239) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:218) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:422) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.handler.rewrite.RewriteHandler.handle(RewriteHandler.java:230) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:326) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:585) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:988) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:756) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:415) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:429) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:451)

[XenoPhage]

I'm seeing the exact same error, same circumstances. Several computers are exhibiting this behavior, while a number of others seem to be working normally. Did you ever find a fix for this?