Mesh Network Hardware Details:

1. 3x Deco X80 (Main Device) - 1.2.2 Build 20240827 Rel. 43631
2. 1x Deco X20 - 1.5.3 Build 20231227 Rel. 62097

ISP Details:

Globe Telecom Inc. (GMCR, INC) - Philippines

Issue:

I have a router-modem setup wherein the ISP-provided modem is configured to be in PPPoE Bridge Mode. The routers, of course, are the 4 Deco devices I have which make up the mesh network, with the X80 being the main device connected to the modem. The PPPoE credentials are configured and stored with the Decos, along with an AdGuard private DNS Server set for both DHCP and Internet Connections.

Just a while ago, I tried activating the ISP's IPv6 configuration, which worked successfully in the modem. I was able to obtain a working IPv6 address, and was able to see it fully working in http://test-ipv6.com/ through a direct connection with the modem. The Modem's setting for IPv6 are as follows:

• Prefix Acquisition Mode: DHCPv6-PD

• IP Acquisition Mode: Automatic

To match it with the Decos, I opened the app and set the following settings under Internet Connection:

• IPv6: On

• Internet Connection Type: PPPoE

• Sync IPv4 Account: On (If it's off, it doesn't work)

• Get IPv6 Address: Auto

• Prefix Delegation: On

• DNS Address: (The AdGuard Home Servers)

• Assigned Type: DHCPv6

My problem is that once I activate these, it would only work for a few minutes—enough for me to test it and see that it's actually working—and then my mesh network would intermittently disconnect and reconnect my devices. The connections would span maybe a few seconds to a minute at most, then disconnect, then reconnect again, repeating the entire process. I can't even access the router at all, nor use the internet. It's disruptive.

To end the problem, I had to manually restart the router by unplugging the main unit, then using the first few minutes of stable connection to turn off IPv6.

I've seen in another thread to turn off IPv4 Account Syncing, and to manually input the PPPoE credentials instead, but that wouldn't work. If I do that, the IPv6 just wouldn't work. It needs to be syncing.

I'd love to hear if anyone's experiencing something similar, and maybe a technical resolution to this problem.

Thanks all!