Why am I unable to perform searches on a Splunk search head cluster behind an Azure load balancer with error "CSRF validation failed"?

[brent_weaver]

For some reason I am unable to do searches behind my Azure load balancer, although it once worked. When I inspect the element on the web page I get the following:

https://logsearch.domain.com:8000/en-US/splunkd/__raw/servicesNS/admin/search/search/jobs Failed to load resource: the server responded with a status of 401 (Splunk cannot authenticate the request. CSRF validation failed.)

Does anyone have any thoughts? Perhaps a DNS issue?

Thanks!