We have received reports of users seeing DNSCryptProxy crashing on Windows machines running the following Umbrella clients:
Umbrella standalone client: 3.0.279 and 3.0.335
AnyConnect client: 4.10
Cisco Umbrella engineering teams are working on this issue, and we will update this post once the issue is resolved.
What to look for
In Windows Event Viewer you will see an Event 1000, Application Error for dnscryptproxy.exe.
This has been fixed in all production releases of the Umbrella roaming client.
Umbrella roaming client
Cisco Secure Client
The 5.0.01242 version of the Cisco Secure Client also has the fix for this issue.
Umbrella roaming security module
The 4.10.06090 version of the Umbrella roaming security module has a fix for this issue.