Apologies in advance for limited info, tough to get accurate information from my client.
Last night 2 or 3 of the desktops runnings Windows 10 had an auto update , today none of this can connect to the FileMaker server (15), they get a 'connection failed' message.
All others on the network that were not updated are fine.
Their (contracted) IT person has checked and turned off the firewalls and anything else he can think of that might be causing the 'block' but cannot found anything.
Anyone have any ideas