ERR: Unable to resolve server hostname/domain name

MACaddr

Error after performing Software upgrade to IOSXE-17.13.01

“Communications failure with the Cisco Smart License Utility (CSLU) : Unable to resolve server hostname/domain name”

WORKAROUNDS: Disable/Turn off Smart Licensing Warnings

conf t
 logging discriminator FO_CSL facility drops SMART_LI|CALL
 logging buffered discriminator FO_CSL 40960
 logging  console discriminator FO_CSL
 logging  monitor discriminator FO_CSL
end
conf t
 license smart transport off
end

Notes: Smart licensing modifications do not require any reboot. 

References

Communications Failure with Cisco Smart License Server – Cisco

Commands
#show version

#show logging

#show license all

#show license summary

#show call-home profile all

#show tech-support licensed

Release Notes for Cisco Catalyst 9300 Series Switches, Cisco IOS XE 17.13.x

Field Notice: FN72323 – Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality – Software Upgrade Recommended – Cisco

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