I need help. I am trying to connect my PBX KX-NS300BX to my LAN. However, It refuses the connection due to slow response from PBX. I tried to connect directy to my PC and it worked but i took about 10

Hi, I need some help. I setup a network with 3 VLANs which are: VLAN1: MANAGEMENT | 192.168.200.254 | PORT 2 UNTAGGED | PORT 3 UNTAGGED | PORT 4 TAGGED | PORT 5 TAGGED - 1 Server - 4 XVRs - 1 VOIP PAB