NWA50BE Causing Hardwire Network Disruption

ianj14

Hi.

I've just bought an NWA50BE and connected it to my network, via a gigabit switch.

It seems that the unit is causing disruption on the hard wire connected devices, as things like SpeedTest get very poor figures with it switched on and normal when it's switched off.

I haven't made any changes to settings other than those required when setting it up initially, so have I missed something that needs to be done to get it to play nice with the rest of the network?

Thanks in advance,

Ian

Zyxel_Judy

Hi @ianj14 ,

In general, connecting the NWA50BE to your network should not affect the speed of other wired devices. That said, please check whether any wireless clients are connected to the NWA50BE or to your router (if your router also has Wi-Fi enabled), as heavy wireless traffic could impact overall network performance.

To view the connected wireless client list on the NWA50BE, go to: Web GUI > Monitor > Wireless > Station Info > Station List

ianj14

Hi Judy, thanks for replying.

Unfortunately this isn't the case. The disruptions occur even when no other devices are connected to either the Zyxel or the wifi in the router.

My thoughts are something DHCP related, but that's just a guess based on a few things I've read online.

It's also not consistent, sometimes are worse than others.

Ian

Zyxel_Judy

Hi @ianj14 ,

Thank you for your feedback.

Please check carefully whether any Sonos speakers or other wired devices that also have Wi-Fi capability (such as smart TVs, NAS devices, or IoT devices) are present in your network. If these devices are simultaneously connected via both wired Ethernet and Wi-Fi to the same network, this can create a network loop at the switch level, causing exactly the kind of intermittent disruption you are experiencing. You can also observe the LED behavior on the switch port connected to the NWA50BE — if the port LED is flashing continuously or behaving abnormally compared to other ports, this is a strong indicator that something irregular is happening on that link.

Additionally, please check the logs on your switch, should also be recording relevant events such as topology changes, port flaps, or error states in its log.

To conclusively rule out any wireless client interference, please disable all SSIDs on both the NWA50BE and your Wi-Fi router, then monitor whether the wired devices still experience slowness or disruption. If performance returns to normal with all SSIDs disabled, this confirms that wireless traffic or a bridging loop involving a dual-connected device is the root cause.

ianj14

Hi Judy,

I can confirm that all wifi-capable client devices are off when I test for the Zyxel being switched on and so none of them are in a dual connected state in any way.

I will attempt to disable the SSIDs and see what happens, but I don't think that's the problem.

I am also going to attempt turning of the router's wifi completely, to see if that changes anything, but it's not a state I want to have the system in.

Ian

Zyxel_Judy

Hi @ianj14 ,

Whether the wired devices perform normally when the NWA50BE is connected to your switch and disabling all SSIDs on your network?