The Managed Metadata Service or Connection is currently not available. The Application Pool or Managed Metadata Web Service may not have been started. Please Contact your Administrator.

Question

Hi,
I'm not able to access the term store. I get an below mentioned error.
"The Managed Metadata Service or Connection is currently not available. The Application Pool or Managed Metadata Web Service may not have been started. Please Contact your Administrator. "
Since this is happening on my local machine (Dev environment). I have full control on the term store and the all the site collections.
Hence, this is not a permission issue.
I have checked, the Metadata service is active on the machine. All the application pools in IIS is running.
After reading one of the recommendation on internet, I created a new Managed Metadata Service.
After which I was able access both (old and new) MMS from Central Admin only (highlight the MMS from manage service applications and click Manage ) and not from the site collection (term store management).
Now again its not working after I did an IISRESET.
The managed metadata service (Managed Metadata Service Connection) is grayed out.
ULS Error says:
Failed to create ManageLink for service proxy 'Managed Metadata Service'. Exception: System.TimeoutException: The request channel timed out attempting to send after 00:00:09.9999999. Increase the timeout value passed to the call to Request or increase the SendTimeout
value on the Binding. The time allotted to this operation may have been a portion of a longer timeout. ---> System.TimeoutException: The HTTP request to 'http://mitkar4:32843/7a91ec90b46843e995c144be48d804f0/MetadataWebService.svc' has exceeded the allotted
timeout of 00:00:09.9990000. The time allotted to this operation may have been a portion of a longer timeout. ---> System.Net.WebException: The operation has timed out 
Please let me know if you need more information.

Answer 1

Hi Victoria,
Thanks for your reply
I tried making all the changes you had recommended and which are mentioned in the link you have provided.
I tried making all possible combination of changes to the web.config and client.config files but it does not make any difference to the environment.
One thing is that, my error in ULS logs has changed.
Error 1: 
Exception returned from back end service. System.TimeoutException: The request channel timed out attempting to send after 00:00:09.9999999. Increase the timeout value passed to the call to Request or increase the SendTimeout value on the Binding. The time allotted
to this operation may have been a portion of a longer timeout. ---> System.TimeoutException: The HTTP request to 'http://mitkar4:32843/b1640facdf8b49b0886fea1bd37b8eb3/MetadataWebService.svc' has exceeded the allotted timeout of 00:00:09.9990000. The time
allotted to this operation may have been a portion of a longer timeout. ---> System.Net.WebException: The operation has timed out 
    at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context) 
    at System.Net.HttpWebRequest.GetRequestStream() 
    at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()     --- End of inner exception stack trace --- 
    at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream() 
    at System.ServiceModel.Channels.HttpOutput.Send(TimeSpan timeout) 
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.SendRequest(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)     --- End of inner exception stack trace ---    Server stack trace:  
    at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.SecurityChannelFactory`1.SecurityRequestChannel.Request(Message message, TimeSpan timeout)     at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) 
    at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) 
    at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)    Exception rethrown at [0]:  
    at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) 
    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) 
    at Microsoft.SharePoint.Taxonomy.IMetadataWebServiceApplication.GetServiceSettings(Guid rawPartitionId) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.<>c__DisplayClass2f.<ReadApplicationSettings>b__2e(IMetadataWebServiceApplication serviceApplication) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.<>c__DisplayClass2c.<RunOnChannel>b__2b()
Error 2:
Error encountered in background cache check System.TimeoutException: The request channel timed out attempting to send after 00:00:09.9999999. Increase the timeout value passed to the call to Request or increase the SendTimeout value on the Binding. The time
allotted to this operation may have been a portion of a longer timeout. ---> System.TimeoutException: The HTTP request to 'http://mitkar4:32843/b1640facdf8b49b0886fea1bd37b8eb3/MetadataWebService.svc' has exceeded the allotted timeout of 00:00:09.9990000.
The time allotted to this operation may have been a portion of a longer timeout. ---> System.Net.WebException: The operation has timed out 
    at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context) 
    at System.Net.HttpWebRequest.GetRequestStream() 
    at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream()     --- End of inner exception stack trace --- 
    at System.ServiceModel.Channels.HttpOutput.WebRequestHttpOutput.GetOutputStream() 
    at System.ServiceModel.Channels.HttpOutput.Send(TimeSpan timeout) 
    at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.SendRequest(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)     --- End of inner exception stack trace ---    Server stack trace:  
    at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.SecurityChannelFactory`1.SecurityRequestChannel.Request(Message message, TimeSpan timeout)     at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout) 
    at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout) 
    at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation) 
    at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)    Exception rethrown at [0]:  
    at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) 
    at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) 
    at Microsoft.SharePoint.Taxonomy.IMetadataWebServiceApplication.GetServiceSettings(Guid rawPartitionId) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.<>c__DisplayClass2f.<ReadApplicationSettings>b__2e(IMetadataWebServiceApplication serviceApplication) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.<>c__DisplayClass2c.<RunOnChannel>b__2b() 
    at Microsoft.Office.Server.Security.SecurityContext.RunAsProcess(CodeToRunElevated secureCode) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.<>c__DisplayClass2c.<RunOnChannel>b__2a() 
    at Microsoft.Office.Server.Utilities.MonitoredScopeWrapper.RunWithMonitoredScope(Action code) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.RunOnChannel(CodeToRun codeToRun, Double operationTimeoutFactor) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.ReadApplicationSettings(Guid rawPartitionId) 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.get_ServiceApplicationSettings() 
    at Microsoft.SharePoint.Taxonomy.MetadataWebServiceApplicationProxy.TimeToCheckForUpdates() 
    at Microsoft.SharePoint.Taxonomy.Internal.TaxonomyCache.CheckForChanges() 
    at Microsoft.SharePoint.Taxonomy.Internal.TaxonomyCache.<LoopForChanges>b__0().