Hi Support ,
I upgraded my PRTG from v9 to v14 (188.8.131.520) recently and put the original configuration back . It worked for around 2 weeks . Last weekend , one of the cisco Nexus 7K device's sensor just sent out the "down" notification but there is no error log or reboot message in Nexus 7K when I logged in . And it sent out "up" notification after 11 minutes automatically . During the incident 11 minutes , Ping to the issue Nexus 7K is available on PRTG . Is there any bug or similar issue as same as mine ?