Problems with IPTV behind an AiMesh node

[dCrypt]

Hi,

I have a setup with Movistar fiber connection. My router (Mitrastar) is setup in "semi-bridge" for managing "triple VLAN" scheme for Movistar. Behind it, the Asus AC88U main router is managing the wifi connections and LAN network. Upstream, I have another router as an AiMesh node for extending the LAN to the second floor. Behind it, I have the IPTV decoder.

Everything works perfectly but the IPTV decoder, if it is connected to the AiMesh node.

- If I connect the decoder downstairs, direct connection to the Mitrastar fiber router/gateway, it works.
- If I connect the decoder downstairs, direct connection to the Asus main router, it works.
- If I connect the decoder upstairs, using the cable normally used by the WAN connector in the AiMesh node, it works
- But if I connect the decoder upstairs, plugging it to the AiMesh node, it doesn't work
- I have tried resetting the AiMesh node and setting it up again, but it fails
- I have tried setting up the AiMesh node as an Access Point and it works!! (but this is not what I want)

I am pretty sure it was working before, months ago. Something may have changed after an update.

Any hint?

Thanks a lot

 

[Tech9]

I would be surprised if AiMesh preserves VLAN tagging for IPTV.

 

[dCrypt]

I would be surprised too, if it didn't work before. But it did.

 

[Tech9]

Asus is always fixing something around Guest Network. Perhaps the later updates "fixed" something for you.

 

[dCrypt]

Mmmmm... My issue has nothing to do with Gest Network.

 

[Tech9]

I know, but they switched to VLAN based GN and your IPTV VLAN may be affected.
Someone more familiar with the details may provide more information on the subject.

 

[dCrypt]

Mmmm.... May disablig GN help?

 

[Tech9]

I don't know. I don't have test AiMesh setup at the moment and I don't use IPTV service. It was a guess why it may have stopped working for you.

 

[dCrypt]

I was curious about anyone having a similar problem, when I found that almos a year ago, myself I was asking for the same:

IGMP Snooping in AiMesh node

Hi, I am having problems with IPTV after a recent change in my setup (upgraded AiMesh node) and installed 386.1 firmware. I though there was a problem with the new firmware, but it is not. I've reverted the firmware to 384.19 and the problem persists. My old configuration, where IPTV worked...

www.snbforums.com

Didn't notice that it was not solved so far, maybe we didn't use all the STBs

 

[Tech9]

Interesting. Seems like you attempt using this IPTV once a year. Try again in Feb 2023.

 

[dCrypt]

I promise ... if I don't find the solution before

 

[dCrypt]

Seems to be something related to multicast / IGMP snooping. I could find other issues with multicast devices (such as Shelly home automation devices). @RMerlin , do you have evidence of limitations on this regard, or could be a bug?