Hi there,
Sorry for the late reply from yesterday, been a little manic, (my dear community friend) @PhilipDAth has given you the main answer as basically the who MS ethos is LAN based and does not normally support WAN enviorments.
You should be able to ping each of the PC's on the alternative sites, assuming W10 firewall allows it, but remember that also W10 firewall, by default blocks traffic from non-local networks so this may also be an insure.
You should be able to use smb://IPnumber/sharename
For future, I would recommend from a network architecture point to always leave the management vLAN as 192.168.128.0/24 and the create additional vLAN's for the end-points leaving the infrastructure on the management vLAN and always leave the uplink ports as trunk ports.
Hope all this helps. Feel free to ask if not.
Regards
Gary
CTO & Solutioneer
CMNA, CMNO, ECMS2
SNSA, SNSP
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