@Gilbert_758 

Hi, Thank you for the feedback.

Do you connect the TV decoder via an Ethernet cable to the Deco P9, such as:

Internet----Proximus Internet box---<cable>Deco P9~~~~~Deco P9---<cable>--TV decorder?

Is the TV decoder plug-and-play? or  Do you need to configure IPTV VLAN for the  TV decoder?

Wait for your reply and best regards.

  @Gilbert_758 

Hi, sorry for the delay.

Since the Ethernet cable works, the problem you have experienced is that the TV decorder couldn't wirelessly connect to the satellite P9?

Would there be any error message when connecting to WiFi?

It is suggested to disable "Fast roaming" and "Beamforming" under Deco APP>More>Advanced.

Wait for your reply.

  @Gilbert_758 

Hi, Gilbert,

I'm afraid I missed something due to the Google translation but I am not sure what it was.

I viewed the previous content and noticed you mentioned:

Mon décodeur ne foctionne pas alors qu'en "câblé" cela fonctionne.

When I connect it via cable (but not where I want) it work good ...

I used to think the "cable" connection here refers to the Ethernet connection between TV box and satellite P9.  But now I think you might refer to the original cable connection from TV box directly to the Proximus Internet box, right? And now you want to use 2*P9 to create a "new cable bridge" to connect the TV box where you want.

Have you ever checked with Proximus whether the TV service could be extended via a third-party router?  When P9 is in AP mode, it is almost like "a long Ethernet cable". If AP mode didn't work, I think Proximus TV service might not support third-party routers considering they have their own wireless booster.

Moreover, I found the installation guide here. It takes Deco X50 for example: https://primus.ca/index.php/ont_en/support/internet/cable/getting-started#modem-and-hardware-install-guide

Is there any chance that you could disconnect the Proximus internet box and only use Deco P9, then connect P9 directly to ONT and set P9 into wireless router mode.

(If "Dynamic IP or PPPOE" internet connection did not work, please try "PPPOE+ VLAN 10 internet tag")

After that, please refer to this link to set the TV box connected port as IPTV port-How to Configure IPTV function on Deco

If it was not what I thought above, Would you mind explaining again what might be the problem that you have experienced between Deco P9 and Proximus TV box?

Thank you very much and best regards.

  @Gilbert_758 

Hi, Thanks a lot for the further explanation.

As we discussed earlier, when P9 is in AP mode, it works just like an Ethernet cable and will forward through all the data traffic. There aren't any settings(like IPTV or VLAN) we could edit or change. If the TV decoder didn't work, likely, P9 may not support this kind of connection.

Since P9 could also work as a wireless router as the main Proximus internet box, and under router we are allowed to manually configure the IPTV settings, if possible, you could try to disconnect the Proximus internet box and only use Deco P9, then connect P9 directly to ONT and set P9 into wireless router mode.

Thank you very much and best regards.