Hi everyone,

 

I’m having an issue with my TP-Link Deco X50 mesh system where it seems to be passing multiple MAC addresses to my ISP (Gigaclear), which uses an Artrans ONT. This is causing my ISP’s MAC table to fill up, resulting in loss of internet access until they manually clear it.

 

My Network Setup:

Connection Type: Dynamic IP (Automatic), IPv4 only and IPv6 disabled

MAC Clone: Off

Wiring:

Modem 10GE port → Main Deco WAN 1 → LAN 2 → LAN 1 (second Deco node) → LAN 2 → Switch

A switch is connected to the second Deco node to handle wired Ethernet devices

 

ISP has confirmed that multiple MAC addresses are appearing in their MAC table, when I would expect only one MAC address (the main Deco node’s WAN MAC).

 

I have IPv6 completely disabled in the Deco settings since they dont support this. 

 

I’ve never had this issue with other providers, and similar reports have been mentioned on Reddit

 

Questions:

 

1. Why would multiple MAC addresses be passing through to the ONT?

2. Is there a known setting in Deco that could be causing this?

3. Could the second Deco node or the switch be exposing extra MAC addresses to the ONT somehow? I have WAN auto sensing disabled

Has anyone else experienced this with the Deco X50 or similar setups? Any help would be greatly appreciated!

 

Thanks,

Healy

 

EDIT: this email from support

 

Apologies for the late reply, the main MAC address connected as I can see is the TP link ( a86e.xxxx.xxxx ) Currently.

 

Previous Connections : 

 

84d8.xxxx.xxxx - TP LINK TECHNOLOGIES CO was connected from March 11 - March 11 around 5 PM to when it has switched to the Main TP Link DECO ( a86e.xxxx.xxxx ) 

0cfe.xxxx.xxxx. - Sony Interactive Entertainment Inc. Was disconnected on March 10th - I think it was trying to take over but was unable to 

8069.1a61.2f9e - Linksys - was connected on February 21st.

 

Hope this helps

 

If you have any further questions or queries, please do not hesitate to reply back to this email and I can get back to you as soon as I can.

Kind Regards,

Atish

 

Why is my PS5 trying to take over! Looks like this is the main culprit!