Hi 

we have Exchange server 2013 and suddenly found the outlook disconnected and going to < trying to connect to Microsoft exchange> 

i check all databases its mounted and fine , after this I monitor mail server IP using ping  and found there are 2 request time out in less than an hour 

is this may cause the problem ?

incise if i want to check all services its working fine what shall i check 

Mahmoud,

Go through following checklists

1. Run some network monitoring tool and see any packet drops are happening between client machine and server during the issue

2. Check Domain controller and see for any errors, warnings etc.

3. Check the firewall locally on the server or the network to see any block etc.

Check mail server and your computer event viewer for any problems

Hi,

Please confirm whether the issue happens to all users or specific users to narrow the issue to client side or server side.

Are you seeing any errors in the event viewer of the CAS server?

Please make sure all the exchange services are running on your server.

When the issue occurs, we can do an Outlook connectivity test with https://testconnectivity.microsoft.com/   and see what went wrong.

Best Regards,

David 

hi 

• till now I don't know if the problem was in all users or specific users m but I get calls from some users about this problem 
• for the CAS servers has now error just the event ID 2030 and its different time the problem happened
• I monitor the  wenamil.domain.com<my mail> and found there about 9 request out  during last night around (15 hour in different times  are this effect 

Check the mail server date/time and check the NTP configuration. I had same problem with mail server. Mails has delivered to destinations but with earlier date/time and mail receivers couldn't find mails because it was received for old dates. 

Hi 

FYI

Yesterday I run this command 

gci C:\Program Files\Microsoft\Exchange Server\V15\Logging,'C:\inetpub\logs -Directory | gci -Include *.log,'*.blg -Recurse | ? LastWriteTime -lt (Get-Date).AddDays(-7) | Remove-Item

shall this may affect ?

hi 

i find when the outlook disconnected I can use the OWA normally , I don't know where exactly the problem 

 

Hi,

The outlook disconnected and you can use the OWA normally ,there maybe something wrong with your autodiscover service.

Please run the following command to check your autodiscover service:

Get-ClientAccessServer | FL Identity,AutodiscoverServiceInternalUri

On problematic client side, please run Test E-mail AutoConfiguration Tool, and collect the Logs tab and Results tab information:
Open Outlook - press CTRL key - right click on the Outlook icon from right bottom corner taskbar - Test Email AutoConfiguration. Put your email address - uncheck use guessmart and secure guessmart .

Regards,
David 

• Edited by David Wang_Microsoft contingent staff 3 hours 55 minutes ago

Hi,

The outlook disconnected and you can use the OWA normally ,there maybe something wrong with your autodiscover service.

Please run the following command to check your autodiscover service:

Get-ClientAccessServer | FL Identity,AutodiscoverServiceInternalUri

On problematic client side, please run Test E-mail AutoConfiguration Tool, and collect the Logs tab and Results tab information:
Open Outlook - press CTRL key - right click on the Outlook icon from right bottom corner taskbar - Test Email AutoConfiguration. Put your email address - uncheck use guessmart and secure guessmart .

Regards,
David 

• Edited by David Wang_Microsoft contingent staff Tuesday, June 30, 2015 3:29 AM

Hi,

The outlook disconnected and you can use the OWA normally ,there maybe something wrong with your autodiscover service.

Please run the following command to check your autodiscover service:

Get-ClientAccessServer | FL Identity,AutodiscoverServiceInternalUri

On problematic client side, please run Test E-mail AutoConfiguration Tool, and collect the Logs tab and Results tab information:
Open Outlook - press CTRL key - right click on the Outlook icon from right bottom corner taskbar - Test Email AutoConfiguration. Put your email address - uncheck use guessmart and secure guessmart .

Regards,
David 

• Edited by David Wang_Microsoft contingent staff Tuesday, June 30, 2015 3:29 AM
• Marked as answer by Mahmoud Adel Ibrahim 23 hours 6 minutes ago

thanks for your reply 

I check autodiscover service and I get  for both CAS servers 

https://webmail.mydomain/autodiscover/autodiscover.xml

Also I run the Test E-mail AutoConfiguration Tool and  I got 

I found on the log tab   

getlasterror 0 httpstatus 200 what this mean ?

for results tab and log tab  there is any value needs to be checked ?

kindly note I run this test when not facing problem as I don't know the time the problem will happen  , in this case this test will be fine or not  

Regards

Hi,

Please add the test results in details .

When you run the test tool, you can find detailed connection process in results zone , we need to get autodiscover failure message for further analysis.

regards,

David 

there many data like internal and external owa url 

i din't found any failure messages on the results tab  do you advice me to search specific values needs to be checked

  

in the log tab 

Autodiscover to https://autodiscover.x.x/autodiscover/autodiscover.xml starting
GetLastError=0; httpStatus=200
Autodiscover to https://autodiscover.x.x/autodiscover/autodiscover.xml succeeded

Hi

two days ago till now the problem not repeated , I did't take any action 

I think this network issue and now hope not repeated again 

thanks all