XT9 LAN Switch connectivity issues

[Arthur1290]

I have two XT9's, everything works wonderfully over wifi, but if I connect two devices over the LAN ports, the connection stops working.

if I change anything in the router configuration and select apply, the router restarts somethings, then it works for a while, then stops again.

i saw few other folks having the same issues, but apparently nobody from asus takes it seriously . I also opened a ticket but so far no reply. 
I'm currently using a switch connected to one LAN port, and the devices are plugged in the switch, but this not what I wish, and the LAN switch module should work!

 I'm guessing there's a buffer overflow in the firmware that freezes the LAN switch after a certain amount of packets go through it.

[dbl81]

Thank you for your reply, but the problem isn't solved by resetting to factory settings or by setting a different MTU value. The issue is the isolation between the router's Lan ports, which is not a standard or acceptable configuration. I tried to factory reset the router, nothing changed. I have the latest firmware available installed on my two devices.

[Aureliannn_ASUS]

Hi @dbl81 ,

Thank you for contacting us. 

To help us troubleshoot your LAN port not working issue, we would like to ask you to confirm the following:

1. Hard reset: Have you tried performing a hard reset (force restart) on your device? The steps for a hard reset may vary depending on your device model. Please refer to your device's user manual or contact the manufacturer for assistance. [Wireless Router] When Standard Reset Isn’t Working: Hard Factory Reset - Models list | Official Sup...
2. Wireless connection status: If you switch your device to a wireless connection, can you access the internet normally? If not, please describe the error message in detail.
3. Network cable test: Have you tried using a different network cable to connect your device? This can rule out the possibility of a faulty network cable.
4. Problem occurrence scenario: To better understand the problem, please describe the process in which the problem occurred in detail, such as:
   When did this problem start?
   What operations were you performing when the problem occurred?
   Have you installed any new software or hardware?
   Have you tried any other solutions?

In addition, we recommend that you report the problem immediately using the built-in system function when the problem occurs.

You can submit a feedback form Web GUI (http://www.asusrouter.com).
1.Connect your device to your router and log in to Web GUI(http://www.asusrouter.com)
2.Find “Administration,” and tap “Feedback”
3.Fill in your region, email (required field), ASUS Service No./Case No.(not required),Select the feedback problem and description.You can also write down comments/suggestions. More details might help us to analyze the issue you have encountered in a faster and more efficient way.
4.Read the agreement and click “I agree.”
5.Tap “Send” to submit your feedback.
Then provide the product serial number, the time of submitting the issue report, the email used for filling out the issue report, and the time when the issue occurred via private message.

Thank you.