You can try to switch the WAN. There may be surprises.

I think T1500G-10MPS can only set up the marking on all traffic.

Do you mean that you need to access the printer, but you have three WANs, therefore, the data that accesses the printer may be forwarded from different WAN, resulting in access failure? Maybe you can...

As I know, ER5120_V3 supports up to 300 clients. You can set up the static IP address or use other DHCP servers for other clients. Because they are in the different subnets, you need to configure the...

You can check the negotiation speed between the device and the switch. You can also check if there is a large amount of data flooding in the network, taking up bandwidth. You can post your topology....

If you want DSCP QoS takes effects, the different data of Zoom, whatsapp, youtube and so on need to have different priority fields. TL-SG108E only can recognizes priority fields and does not add or...