@SAZNM Well, ER605 supports multiple IPs on WAN. One to one NAT. Do you mean that you want to have one to one NAT at the same time and set up the port forwarding, yet unable to specify the external...

@Ben-91 It is quite normal that you cannot access your front ISP router because they are two networks and they have firewalls. (A router is a NAT, that's stopping you from the cross-LAN connection)...

@m4rtn From my past experience, I can only tell that either the physical issue or the settings blocks the connection. Physical: your switch port is dead/ your cable's broken/ your device is...

@bhhussain About the core switch, you need to look for an L3 switch. SG3428, this is an L3 switch. For the 2428, it can meet most requirements for regular use. Have you checked the settings on 2428?...

@BLite Far as I know, V2 is not available on any platform. I do see some screenshots from the TP-LINK mentioning V2. But, nowhere can find the V2. About the upgrade, if you own a controller, settings...

@srizkii To find out the CLI User GUIDE: https://www.tp-link.com/en/support/download/tl-sg3428x/ If you are talking about that your computer does not work with the VLAN, make sure you set up the PVID...