Question Setting up a TP-LINK TL-SL2218 switch in conjunction with a Ubee EVW32C modem

[vrozman]

Hello! We are an apartment building with a cable broadband ISP that provided us with the Ubee modem, model EVW32C-0N-010. In order to divide traffic between apartments, we purchased a TP-LINK switch, model TP-SL2218, which has 16 100 Mbps ports and 2 1000 Mbps ports. The switch is connected to the modem via a 1000 Mbps port. We have LAN cables plugged in for 6 apartments via 100 Mbps ports. All ports have Speed and Duplex set to Auto and Flow Control to Disable. If I measure the connection speed via the LAN cable using the speedtest.net page on my iMac computer (27-inch, mid 2010), I have a download of only 8 Mbps and an upload of 69 Mbps. But if I plug the LAN cable from my iMac directly into the modem, I get a download of 490 Mbps and an upload of 112 Mbps. I wonder why the download speed via the switch decreases so much and I am asking for advice on how to increase it. Is it possible that the reason for the lower dowload is an IP conflict between some of the routers in the apartments connected to the switch?

It is also interesting that if I connect to my iMac with a LAN cable via the AirPort Extreme 802.11n (4th Generation) router, directly to the modem, the download is 94 Mbps and the upload is 71 Mbps. If, however, with such a configuration I connect to the Internet via the AirPort Extreme WiFi network on my MacBook Pro computer (13-inch, 2017), I get a download of 127 Mbps and an upload of 67 Mbps. So, how is it possible that WiFi speed is faster than via cable, because usually WiFi speed is a bit slower than cable?

 

[vrozman]

We are now in communication with the landlord to replace the current switch with the TP-LINK TL-SG1016D 16-port gigabit rack unmanaged switch that should work plug-and play without the need of the configuration by specialised technician.

 

[JackMDS]

Ubee EVW32C is Not just a Modem. It is a Modem Router Wire and wireless combo.

In the same Network under normal setting, Wire is almost always slower than Wire. Howver if your your Wireles inside the Router is connected to the 1GB part of the system, 2017 Macbook that usualy has very good Wireless capacity might be faster than the 100Mb wire.