One of the nodes in this cluster is not able to connect to netapp to post its ASUP since we updated to 8.1 GA 40 days ago:

AutoSupport (HA Group Notification from na04 (USER_TRIGGERED (COMPLETE:completedShelfFWupdate)) INFO) cannot connect to url https://support.netapp.com/put/AsupPut/

[na04:asup.post.retry:info]: AutoSupport message (HA Group Notification from na04 (PERFORMANCE DATA) INFO) was not posted to NetApp for host (0). The system will retry later to post the message

User triggered also fails to post to netapp.support.com (although we receive the emails internally):

Jun 4 10:20:03 [na04:asup.post.host:info]: AutoSupport (HA Group Notification from na04 (USER_TRIGGERED (testing)) INFO) cannot connect to url https://support.netapp.com/put/AsupPut

I compared

options auto output on both nodes and they are the same

DNS settings are the same - and functional

na04*> ping www.netapp.com

a878.b.akamai.net is alive