NetScaler AppFirewall gives 400 error while uploading files

Environment details:

NS Version: 9.3,, 11.0

NS Platform: SDX, MPX, VPX


Users are unable to access Exchange when going through NetScaler. It keeps trying to connect but is unable to connect. However the same works when going directly to the Exchange server. When checking the logs we saw that POST request is blocked when the Application Firewall feature is enabled.

From the ns.log on the NetScaler


#tail f /var/log/ns.log


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