topic Re: XT9 LAN Switch connectivity issues in Networking

XT9 LAN Switch connectivity issues

Arthur1290 — Wed, 04 Dec 2024 10:50:46 GMT

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.

Re: XT9 LAN Switch connectivity issues

Aureliannn_ASUS — Fri, 06 Dec 2024 01:56:55 GMT

Hi @Arthur1290 ,

Regarding the network issue you encountered, we suggest you try the following:

Firmware update: Please ensure that the firmware of all network devices (router, switch, etc.) is the latest version. You can log in to the management interface of each device to check and update.
Factory reset: If the problem persists after updating the firmware, we recommend that you reset all devices to factory settings and reconfigure the network.
Check network cables: Please check all network cables for damage or loose connections. If necessary, replace the network cables.
Adjust LAN port settings: You can try adjusting settings such as MTU value or flow control in the router or switch settings page.
When the problem occurred: When did this problem start? Is it related to a specific firmware update?

If the above methods still cannot solve the problem, we recommend that you use the system's reporting function to provide us with the relevant system logs and error messages when the problem occurs so that we can further analyze it.

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.

Re: XT9 LAN Switch connectivity issues

analytic_al — Fri, 06 Dec 2024 21:11:07 GMT

I have almost the same issue with my new pair of XT9s, newest firmware upgrade. I have 11 devices on wifi, two wired PCs. When I plug the PC's into two of the three wired LAN ports on the XT9, they can each see and ping all other devices, except the other wired PC. [These worked perfectly together on the previous router, it's not a firewall or file sharing issue]. Can't ping or share with the other wired port, but the PC's CAN see each other if either PC uses it's alternative built-in wifi connection. I called ASUS support and after quite the discussion was told "the 3 hardwired ports are isolated, it's a feature". I told the tech it seemed like a bug and that isolation "feature" is not documented anywhere, was not how I expected it to work. As you mentioned, I've ordered a $15 gigabit switch to hang off the port, that should solve it. However my problem was not intermittent... but it did work periodically whenever either laptop's wifi was connected. If I turn off wifi, the hardwire connections won't talk to each other.

Re: XT9 LAN Switch connectivity issues

dbl81 — Thu, 19 Dec 2024 09:27:39 GMT

Same issue here.

The isolation of the router lan ports is a BUG, not a feature. It should be a user's choice (like a vlan configuration) not a factory's choice.

Asus has to change this behaviour by a firmware update ASAP or many users like me have to return the product (2x Asus ZenWifi XT9 mesh routers). I don't want to spend more money buying a switch that I don't need.

Implementation choices of this type must be clearly explained on the product box or manual.

Waiting for ASUS answer.

Thank you.

Re: XT9 LAN Switch connectivity issues

Arthur1290 — Thu, 19 Dec 2024 13:01:25 GMT

Hey folks. After doing a hard reset and reconfiguring everything, I set the MTU on my MacMini to 1492. So far it works and it seems stable. Not sure if it has to do with the need of a factory reset after Fw upgrade, or just the MTU. Though ping works now also with MTU of 1500, after a while the connection gets dropped, but it reconnects automatically. Try hard resetting see if it helps!

Re: XT9 LAN Switch connectivity issues

dbl81 — Thu, 19 Dec 2024 13:07:50 GMT

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.

Re: XT9 LAN Switch connectivity issues

Aureliannn_ASUS — Thu, 26 Dec 2024 02:19:08 GMT

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:

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 Support | ASUS Global
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.
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.
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.