Abnormal PREEMPTIVE_OS_AUTHENTICATIONOPS Waits
This is an issue external to SQL Server. You should check that your authenticating AD servers for this machine are working correctly, and that you are not accidentally attempting to authenticate to AD in another data center (presuming that you have one). Additionally look for problems on the AD servers, such as high CPU utilization.
For more details on this wait type look at https://www.sqlskills.com/help/waits/preemptive_os_authenticationops/
This may also be due to inadvertent routing of authentication traffic to an AD domain controller in another data center as identified via a network trace. The trace will identify the DC(s) involved for further troubleshooting.