We have some serious problem with our confluence. Weekly once or twice we get this issue. Our wiki page does not open in IE browser but the same is working fine in Firefox. We used to restart our server and after which it will work fine i both the browsers. Why this is happening like this suddenly.

This is the last recorded error from the log file.
2014-06-16 03:07:25,299 ERROR [http-8092-173] [[Standalone].[localhost].[/].[noop]] log Servlet.service() for servlet noop threw exception
jcifs.smb.SmbException: Failed to negotiate
jcifs.smb.SmbException: Timeout trying to open socket
java.io.IOException: Failed to establish session with dmn1.fmr.com/10.93.64.251
at jcifs.smb.SmbTransport.run(SmbTransport.java:363)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.start(SmbTransport.java:315)
at jcifs.smb.SmbTransport.negotiate0(SmbTransport.java:865)
at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:941)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:947)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
2014-06-16 03:07:25,302 INFO [http-8092-173] [atlassian.confluence.status.SystemErrorInformationLogger] writeToLog
Request Unique ID : 8ed696f6-e0f7-49a2-a363-8c4863f78ecd
--------------------------
JVM Stats
--------------------------
allocatedHeap = 964427776
availablePermGen = 313256184
usedMemory = 846318072
totalMemory = 964427776
freeMemory = 118109704
maxPermGen = 536870912
usedPermGen = 223614728
freeMemoryInMegabytes = 112
freeAllocatedHeap = 118109704
availableHeap = 585381384
usedMemoryInMegabytes = 807
maxHeap = 1431699456
usedHeap = 846318072
totalMemoryInMegabytes = 919
--------------------------
Request Information
--------------------------
URL: http://fpcms-wiki.fmr.com/500page.jsp
Scheme: http
Server: fpcms-wiki.fmr.com
Port: 80
URI: /500page.jsp
Context Path:
Servlet Path: /500page.jsp
Path Info: null
Query String: null
--------------------------
Attributes
--------------------------
javax.servlet.forward.request_uri: /rest/mywork/latest/status/notification/count
javax.servlet.forward.context_path:
javax.servlet.forward.servlet_path: /rest
javax.servlet.forward.path_info: /500page.jsp
javax.servlet.error.status_code: 500
javax.servlet.error.servlet_name: noop
javax.servlet.error.message:
javax.servlet.error.exception: jcifs.smb.SmbException: Failed to negotiate
jcifs.smb.SmbException: Timeout trying to open socket
java.io.IOException: Failed to establish session with dmn1.fmr.com/10.93.64.251
at jcifs.smb.SmbTransport.run(SmbTransport.java:363)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.start(SmbTransport.java:315)
at jcifs.smb.SmbTransport.negotiate0(SmbTransport.java:865)
at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:941)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)

javax.servlet.error.request_uri: /rest/mywork/latest/status/notification/count
--------------------------
Parameters
--------------------------
caused by: jcifs.smb.SmbException: Failed to negotiate
jcifs.smb.SmbException: Timeout trying to open socket
java.io.IOException: Failed to establish session with dmn1.fmr.com/10.93.64.251
at jcifs.smb.SmbTransport.run(SmbTransport.java:363)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.start(SmbTransport.java:315)
at jcifs.smb.SmbTransport.negotiate0(SmbTransport.java:865)
at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:941)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:947)

2014-06-16 03:35:26,486 ERROR [http-8092-163] [[Standalone].[localhost].[/].[noop]] log Servlet.service() for servlet noop threw exception
jcifs.smb.SmbException: Failed to negotiate
jcifs.smb.SmbException: Timeout trying to open socket
java.io.IOException: Failed to establish session with dmn1.fmr.com/10.33.127.21
at jcifs.smb.SmbTransport.run(SmbTransport.java:363)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.start(SmbTransport.java:315)
at jcifs.smb.SmbTransport.negotiate0(SmbTransport.java:865)
at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:941)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:947)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
2014-06-16 03:35:26,487 INFO [http-8092-163] [atlassian.confluence.status.SystemErrorInformationLogger] writeToLog
Request Unique ID : 548c221f-1e8b-4639-acad-0f6eeb7c0e43
--------------------------
JVM Stats
--------------------------
allocatedHeap = 950599680
availablePermGen = 313255432
usedMemory = 900507808
totalMemory = 950599680
freeMemory = 50091872
maxPermGen = 536870912
usedPermGen = 223615480
freeMemoryInMegabytes = 47
freeAllocatedHeap = 50091872
availableHeap = 531191648
usedMemoryInMegabytes = 858
maxHeap = 1431699456
usedHeap = 900507808
totalMemoryInMegabytes = 906
--------------------------
Request Information
--------------------------
URL: http://fpcms-wiki.fmr.com/500page.jsp
Scheme: http
Server: fpcms-wiki.fmr.com
Port: 80
URI: /500page.jsp
Context Path:
Servlet Path: /500page.jsp
Path Info: null
Query String: null
--------------------------
Attributes
--------------------------
javax.servlet.forward.request_uri: /rest/mywork/latest/status/notification/count
javax.servlet.forward.context_path:
javax.servlet.forward.servlet_path: /rest
javax.servlet.forward.path_info: /500page.jsp
javax.servlet.error.status_code: 500
javax.servlet.error.servlet_name: noop
javax.servlet.error.message:
javax.servlet.error.exception: jcifs.smb.SmbException: Failed to negotiate
jcifs.smb.SmbException: Timeout trying to open socket
java.io.IOException: Failed to establish session with dmn1.fmr.com/10.33.127.21
at jcifs.smb.SmbTransport.run(SmbTransport.java:363)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.start(SmbTransport.java:315)
at jcifs.smb.SmbTransport.negotiate0(SmbTransport.java:865)
at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:941)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)

javax.servlet.error.request_uri: /rest/mywork/latest/status/notification/count
--------------------------
Parameters
--------------------------
caused by: jcifs.smb.SmbException: Failed to negotiate
jcifs.smb.SmbException: Timeout trying to open socket
java.io.IOException: Failed to establish session with dmn1.fmr.com/10.33.127.21
at jcifs.smb.SmbTransport.run(SmbTransport.java:363)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.start(SmbTransport.java:315)
at jcifs.smb.SmbTransport.negotiate0(SmbTransport.java:865)
at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:941)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:136)
at jcifs.smb.SmbSession.getChallenge(SmbSession.java:130)
at jcifs.http.NtlmHttpFilter.doFilter(NtlmHttpFilter.java:130)
at com.fidelity.AttivioNtlmHttpFilter.doFilter(AttivioNtlmHttpFilter.java:65)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)

at jcifs.smb.SmbTransport.negotiate(SmbTransport.java:947)

2014-06-16 03:45:37,688 WARN [http-8092-173] [atlassian.plugin.webresource.DefaultResourceDependencyResolver] resolveDependencies Cannot find web resource module for: com.atlassian.jira.gadgets:common
– url: /plugins/macrobrowser/browse-macros.action | userName: krithika.krishnaswami | referer: http://fpcms-wiki.fmr.com/pages/viewpage.action?pageId=97059917 | action: browse-macros
2014-06-16 04:01:50,525 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteDirectory] synchroniseCache synchronisation for directory [ 70418433 ] starting
2014-06-16 04:01:55,376 INFO [scheduler_Worker-1] [directory.ldap.cache.RemoteDirectoryCacheRefresher] findAllRemoteUsers found [ 6216 ] remote users in [ 4513ms ]
2014-06-16 04:01:55,827 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanning [ 6216 ] users to add or update
2014-06-16 04:01:55,828 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanned [ 00.0% ] users
2014-06-16 04:01:55,828 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanned [ 01.6% ] users
2014-06-16 04:01:55,828 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanned [ 03.2% ] users
2014-06-16 04:01:55,829 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanned [ 04.8% ] users
2014-06-16 04:01:55,829 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanned [ 06.4% ] users
2014-06-16 04:01:55,829 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanned [ 08.0% ] users
2014-06-16 04:01:55,830 INFO [scheduler_Worker-1] [atlassian.crowd.directory.DbCachingRemoteChangeOperations] getUsersToAddAndUpdate scanned [ 09.7% ] users