Quote:
Originally Posted by Quoth
DNS shouldn't matter when you are using IP addresses. Clue in name. DNS maps human readable names (that might not have a domain suffix if on LAN) to IP addresses.
Some other setting (maybe a static route or DHCP) is wrong.
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My guess is that the change was more "global" than DNS, perhaps turning on isolation mode or guest networking. The usual default with guest networking is that a machine on the guest net can't see a machine on the main net. If using full isolation then no machine on the lan can "see" other machines on the lan (think "hotel").