I cannot use cast feature in YouTube to watch in TV after upgrading to a Netgear R6260

I upgraded to a Netgear R6260 router a few months ago and since then I am unable to use the cast feature in youtube app to cast any videos I'm playing on my phone or laptop to my TV. I was previously using a TPlink router and it worked flawlessly. But after changing to netgear, I cannot use this feature anymore. I tried going back to my previous router to see if it was a problem with the devices I was using but it was not. I also did not mess with any router settings.

I'm not an expert when it comes to understanding routers and its settings, so please help me fix this issue. I would like to have that feature back while using this amazing netgear router.

Thanks in advance. :)