Antivirus - Endpoint Console with error code a049001e - 'Deadlock detected while asynchronously scanning....

During these weeks, on Sophos Enterprise Console, we faced below error on several computers and servers:

Error code a049001e saying 'Deadlock detected while asynchronously scanning....

This issue was affecting clients and servers with Citrix installed (clients or server components):

Symptoms or Error

While login or launching a ICA session , UPM profile takes long time to login due Sophos Anti Virus 


Created registry change to disable asynchronous Scanning for Sophos Anti Virus: 




Create a new REG_DWORD called: DisableAsyncScans with a value of: 1 

DisableAsyncScans registry fix (

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