I am very curious what fixes will be in MR1, and as to the previous version, the result of the investigation which was the reason for sudden stop of network traffic for some users.
Upgraded from v17.5MR12 to v18 MR1-Build396 with the related .sig file on my virtual device 10 min ago - worked all perfectly well so far (at least for the last 10 minutes - no simple drop)