@IMN I check TP-LINK User Guide. >>> With Application Optimized Routing enabled, the router will consider the source IP address and destination IP address (or destination port) of the packets as a...

@IMN Do you mean the following setting? You can try to enable it.

If you cpanel sites has the fixed IP address, you can set policy routing to make the traffic go to specific WAN port. Please see the following FAQ. Make the destination as your cpanel IP, service...

@APRC-P3-Tel 1) If the IP address between start address and end address is more than 1024 IP addresses, it should popup saying the max limit is 1024 addresses. 2) Actually ER5120 V4 doesn't limit the...

@APRC-P3-Tel As you know, ER5120 V4 support VLAN but cannot provide multiple DHCP server pool. ER5120 V4 support up to 1024 IP addresses for DHCP pool. But please note that it's recommended to carry...

For RMA, if you switch is still under warranty of Amazon, you can contact Amazon. If not, you can contact TP-Link support through their official website.