SYMPTOM:
When follow steps in below Technical Note to configure certificate server in IIS, in step "4. Test Strategy Certificate Server to confirm that it is correctly configured", user get error "A potentially dangerous Request.QueryString value was detected from the client".
KB38391: How to configure the MicroStrategy Certificate Server for client certificate authentication for MicroStrategy Mobile 9.x
If user directly configure Mobile Configuration link to access projects from Mobile device, connection fails with 500 Internal Server Error.
CAUSE:
This is because the "<" or ">" included in the URL is detected as dangerous in .NET.
ACTION:
To avoid this error, in IIS--CertificateServer Virtual Directory--Pages and Controls, change validate request to "False", as shown below:
For .NET 4 environment, following line need to be added in web.config, under <system.web> node:
<system.web> <httpRuntime requestValidationMode="2.0" />
