@Virgo but when I did set tagged the uplink of voice vlan, not immediately but after some minutes it started to work properly.

hello, thank you for the advise but unfortunately it makes no success

hello, We have a scenario with PCs chained behind Yealink IP phones. the problem is that the IPphones on the VLAN2 (voice vlan with oui , or mac vlan) the PCs are on the management VLAN1. DHCP server...