Nothing much to go on but it sounds like broken DNS. I'd check all members are using the local DNS server and that the DNS server is functional.
--please don't forget to upvote
and Accept as answer
if the reply is helpful--
This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
can not access the computer in the lan by \hostname ,but can access it by \ip address.
can see the hostA,hostB in the network , ping is ok.but can not access it by \hostA,
Nothing much to go on but it sounds like broken DNS. I'd check all members are using the local DNS server and that the DNS server is functional.
--please don't forget to upvote
and Accept as answer
if the reply is helpful--