GetModelsDiff return status is 404 error

[locutus]

I have my production server running Alfresco 4.0.b.  Anything with a URL of http://servername:8080/share works fine.  When I try http://servername:8080/alfresco I get:

I tried the standard link as well with the same results:  http://interal.ip.addr.ess:8080/alfresco/faces/jsp/dialog/container.jsp and also http://127.0.0.1:8080/alfresco/faces/jsp/dialog/container.jsp from the console.

HTTP Status 404 -

type Status report

message

description The requested resource () is not available.
Apache Tomcat/6.0.29

The catalina.log file contains this error based on the each time I try to go to the web site:

Feb 10, 2012 8:28:45 AM org.quartz.core.ErrorLogger schedulerError
SEVERE: Job (Solr.CoreTracker-archive threw an exception.
org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: org.alfresco.error.AlfrescoRuntimeException: 01100056 GetModelsDiff return status is 404]
        at org.quartz.core.JobRunShell.run(JobRunShell.java:227)
        at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)
Caused by: org.alfresco.error.AlfrescoRuntimeException: 01100056 GetModelsDiff return status is 404
        at org.alfresco.solr.client.SOLRAPIClient.getModelsDiff(SOLRAPIClient.java:1010)
        at org.alfresco.solr.tracker.CoreTracker.trackModels(CoreTracker.java:1630)
        at org.alfresco.solr.tracker.CoreTracker.trackRepository(CoreTracker.java:1134)
        at org.alfresco.solr.tracker.CoreTracker.updateIndex(CoreTracker.java:491)
        at org.alfresco.solr.tracker.CoreTrackerJob.execute(CoreTrackerJob.java:45)
        at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
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This is the tail of the alfresco.log file, although it doesn't appear to be updated each time I try to go to the web site:

08:21:52,275 INFO  [org.springframework.extensions.webscripts.ScriptProcessorRegistry] Registered script processor javascript for extension js
08:21:52,751 INFO  [org.springframework.extensions.webscripts.TemplateProcessorRegistry] Registered template processor freemarker for extension ftl
08:21:52,754 INFO  [org.springframework.extensions.webscripts.ScriptProcessorRegistry] Registered script processor javascript for extension js
08:21:53,890 INFO  [org.springframework.extensions.webscripts.DeclarativeRegistry] Registered 312 Web Scripts (+0 failed), 322 URLs
08:21:53,890 INFO  [org.springframework.extensions.webscripts.DeclarativeRegistry] Registered 8 Package Description Documents (+0 failed)
08:21:53,890 INFO  [org.springframework.extensions.webscripts.DeclarativeRegistry] Registered 0 Schema Description Documents (+0 failed)
08:21:54,219 INFO  [org.springframework.extensions.webscripts.AbstractRuntimeContainer] Initialised Spring Surf Container Web Script Container (in 1461.592ms)
08:21:54,223 INFO  [org.springframework.extensions.webscripts.TemplateProcessorRegistry] Registered template processor freemarker for extension ftl
08:21:54,226 INFO  [org.springframework.extensions.webscripts.ScriptProcessorRegistry] Registered script processor javascript for extension js
08:21:59,609 INFO  [org.alfresco.web.site.EditionInterceptor] Unable to retrieve License information from Alfresco: 404
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I read somewhere that this may be a security feature.  Can someone clarify?  If so, I tried doing it locally http://127.0.0.1:8080/alfresco and get the same thing.

I am running CentOS 5.7 64bit.  *I also built a test server with firewall off, selinux disabled, same OS version with 4.0.d - same results.*  The latter leads me to believe it is something I'm doing, but I'm really new to Alfresco and thank you in advance for any help you can offer.

Please let me know if there are more logs or other information needed.

[locutus]

I decided to look again at my production server.  I noticed that my firewall was dropping OUTGOING packets, primarily from the host to itself.  I opened the rules necessary and the admin web page is working.