Dear All,

We have one domain controller with windows 2012r2 server and another two servers Exchange 2013CU9 both are working fine but last night primary heartbeat exchange server motherboard failed i can't switch on it' has 200 users mail Box now i can't login another Exchange server OWA  it's say 

This error (HTTP 500 Internal Server Error) means that the website you are visiting had a server problem which prevented the webpage from displaying.

For more information about HTTP errors, see Help.

[Owa] Failed to refresh Mailbox server for database 26c1b181-2437-4d42-a5bb-ba5e262a18ad in resource forest . Exception: Microsoft.Exchange.Data.Storage.ServerLocator.ServerLocatorClientTransientException: Server Locator Service call had a communication error. ---> System.ServiceModel.EndpointNotFoundException: Could not connect to net.tcp://main-ex2013.kimb.com:64337/Exchange.HighAvailability/ServerLocator. The connection attempt lasted for a time span of 00:00:10. TCP error code 10060: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 192.168.200.111:64337.  ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 192.168.200.111:64337
   at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
   at System.ServiceModel.Channels.SocketConnectionInitiator.ConnectAsyncResult.OnConnect(IAsyncResult result)
   --- End of inner exception stack trace ---

Server stack trace: 
   at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)

Please could you help me how can i login to new server

Hi Suriya,

Do you have DAG setup and the mailbox of the account used to login is it in failed state.

How about EMShell are you able to access that.

Try accessing this URL, replace the "mail.domain.com" with your OWA website

https://localhost/ecp?ExchClientVer=15

https://mail.domain.com/ecp?ExchClientVer=15

Hi

Are you pointing internal DNS to the server that is off or are you using DNS round robin?

Can you browse to the working server on owa by using https://servername.domain.com/owa?

Dear Boss,

I have been successfully log-in to my ECP two times there is no problem.  But after that i sign-out and  try to re-login i got it same error   

Exchange Management shell connected perfectly ... 

Please could you save me boss....

I am waiting for your valuable feedback ...

Hi Suirya,

You didn't answer our questions yet, without the information it will not be possible to understand our condition and help you out.