I have a ER605 gateway with a OC300 controller and multiple EAPs. I have a 1gig down/up fiber connection with supplied modem from our Internet provider. I don't seem to have any issues with my computers but have been having problems with Android devices including phones and fire sticks. Multiple apps including paramount+, Disney+, some other streaming apps along with some other random apps act like they are not getting internet. For example paramount+ will load the advertisement before the video but then will fail to load the video. Other apps will just get stuck loading and when I get off wifi and on to cell connection they load just fine.

I have swapped the router to a old Linksys with wifi and then everything works fine so I believe it is something with the omada hardware. I have found similar threads with the same problem as far as paramount+, which I know paramount+ has a lot of issues but mine goes beyond just that. I have tried changing the DNS to 8.8.8.8 and the mtu to 1400 with no luck. I feel like there is probably some setting that I am overlooking.