If we can get to a router (by a way, what router?), afterwards I’d contend it’s substantially not a complaint with how a switch is configured. By default, which switch will put all trade on VLAN 1, as well as should rightly brazen trade wherever it’s perplexing to go (by default there’s no pruning or pier security, as well as zero to forestall sum network entrance by a switch).
I strongly suggest becoming different a defaults, though it sounds similar to an emanate during a downstream router, not a switch.
If you’d like, we can email me (russelldelong@ymail.com) a improved outline of a network topology (what’s continuous to what), as well as a pattern files for a switch as well as a router (assuming it’s a Cisco router). That should be sufficient report to diagnose a problem.