The server operation time out .please try again later
Some external users who have a dedicated mailbox database in exchange server started to have the following error :
The server operation time out .please try again later , when pressing forward for
mails with large attachments (9 MB in size) through OWA
I noticed that this problem occurs with them only as I tried to access the mail through OWA from outside the company
local network and forward this mail with no error ,
Also I noticed that the database of those users at 9:00 AM to 10: am has a lot of alerts that indicate a
high RPC traffic ,then by monitoring the RPC traffic I found that owa traffic was high ,but after 10 :00 AM even after these alerts are closed and the RPC traffic rate decreased
they still cant forward mail with large attachment .and got the same error .
So does anyone have any idea about what might be causing the problem,in addition how can I know what make the owa traffic being as high with knowing that this database only have 20 users
September 12th, 2012 5:40am
Hi
1. please check your firewall setting. Does it scan or audit outside user ?
2. Mobile phone will cause high traffice.
3. Do you run any schedule task on your server from 9 A.M to 10 A.M.
4. Check network flow.Terence Yu
TechNet Community Support
Free Windows Admin Tool Kit Click here and download it now
September 13th, 2012 4:03am
Dear Trence,
thanks for your reply ,I just want to tell you that I have no access on the firewall and I don't think it is the case because I already tried to access the mail from outside and nothing happen with me .
regarding mobile phone , i was monitoring the rpc traffic and I found that the owa traffic was high not the active sync,
regarding point 3 I have no schedule
regarding point 4 how to check the network flow
September 13th, 2012 5:38am
"the error server times out " started to happen internally from yesterday
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September 13th, 2012 5:45am
Hi
1. please check CPU and memory usage of CAS server. Does any service and process contains these ?
2. Please check virus on client.
3. Do you modify setting on your switch and router?Terence Yu
TechNet Community Support
September 13th, 2012 8:56pm
about cpu usage : checking the task manager I found that there is no high cpu usage or memory
antivirus settings on client was not changed
modifying switch or router configuration I don't know because I'm only mail server admin
but note that when I forward a message with attachment sized 10 MB it would take around 15 to 200 seconds to be loaded internally
so what do you think I could do
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September 17th, 2012 9:36am
Hi
I would check network. Does anyone download big file? Does server download big patch?
Terence Yu
TechNet Community Support
September 17th, 2012 8:40pm