Event ID - 4094

Event Id4094
SourceMSExchangeIMC
DescriptionThe error 0x8004011d occurred while trying to refresh network connections to the Information Store. The Internet Mail Service is being shut down.
Event InformationThe Internet Mail Service (or Internet Mail Connector, in version 4.0) may shut down and the above event along with series of events like 4116, 4117 etc.. may appear in the Event Viewer Application Log. CAUSE
The number of threads available to the IMC or IMS from the Information Store (IS) may be too low. Check the following registry setting: 
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS
\ParametersSystem\Max Threads(Private+Public).


The Max Threads(Private+Public) value defaults to 0x20 when Microsoft Exchange Server is installed. However, if you run Performance Optimizer and leave the default values, select all Server Type options, or choose a low number of users, this registry parameter is decreased to 0x5. This in turn prevents the IMC or IMS from connecting to the IS to deliver new mail or retrieve outbound mail. 

This registry setting is not visible unless Performance Optimizer has been run or you add it manually. 
To work around this problem: 

Change the registry setting so that you increase the number of threads available. For instance, changing it to 0x14 will provide a maximum of 20 threads.
Reference LinksIMC Shuts Down, Error Connecting to IS

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.