Serial Number: 003001000638 IP Address: 10.128.18.55 IPV6 Address:
Then, the M-100 Log Collector was taken away from the network without committing the changes to Log Collector group. The setting of Palo Alto Networks device was changed to connect to Panorama-VM which IP address is 10.128.18.50 and there's no Log Collector in this case. The Palo Alto Networks device still tries to connect to the M-100 Log Collector (10.128.18.55). This symptom persists even after rebooting the device.
The following are logs and command output on Palo Alto Networks device: