I just found this bit of weirdness, and I am not necessarily the only one either.

Whenever using Tramp to open a file with the /sudo::/ syntax, it would hang for a long time. Sometimes not even being responsive to Ctrl-G. Looking at the process tree, I noticed that there was a stuck ping process.

This seemed to be because of the ecb-ping-options variable. It was set to

("HOST")

If that is switched to

("-c 2" "HOST")

instead, then everything should work.