Windchill status = SITE NOT RESPONDING

Hello All,

I have a test server with WC10 which was working fine earlier. After 2 months again when i start the server, it gives below error:

Sun 5/27/12 06:55:09: main: INFO : wt.method.server.startup - MethodServer ready (in 129.75 secs).
Sun 5/27/12 06:55:12: wt.intersvrcom.SiteMonitor.timer: ERROR : wt.intersvrcom.SiteMonitor - Names=[master], URL=http://host-PC.localdomain/Windchill/servlet/WindchillGW, Status=SITE NOT RESPONDING, ResponseSeconds=1.06832684, TimeOfPing=2012-05-27 01:25:09.424
Sun 5/27/12 06:55:12: wt.intersvrcom.SiteMonitor.timer: INFO : wt.jmx.notif.siteStatus - Time=2012-05-27 01:25:12.674 +0000, Name=SiteStatusNotifier, SourceObjectName=com.ptc:wt.subsystem=Monitors,wt.monitorType=VaultSites, class="class" javax.management.Notification, type=wt.intersvrcom.SiteMonitorMBean.noResponseFromSite, userData=[averageResponseSeconds=NaN,lastPing=2012-05-27 01:25:09.424 +0000,lastResponseSeconds=1.06832684,lastStatus=SITE NOT RESPONDING,names=[master],numberOfPings=1,percentageUptime=0.0,url=http://host-PC.localdomain/Windchill/servlet/WindchillGW,vaultsAffected=Vaults "defaultuploadvault" contained in this site are inaccessible because site status is "SITE NOT RESPONDING".], message=No response from site "http://host-PC.localdomain/Windchill/servlet/WindchillGW", JVM Name=5064@host-PC

It says method server started. but, when i try to open the url, it will not even open the login page. in method server it says "SITE NOT RESPONDING". Please let me know how it can be solved apart from reinstalling the server.

Thanks and Regards,

Raghavendra