Hi, I have trouble to activate my Cisco NCS5xxx Devices. Turns out that tools.cisco.com. resolves to either 173.37.145.8 (this works) or 72.163.4.38 (which was decommissioned earlier this year). By running dig A tools.cisco.com @alln01-ucs-dcz03n-gslb1-snip.cisco.com four times I can reproduce this. Cisco, please fix your DNS. Thanks Thomas