@Gllambi I should've asked this before: how exactly "it doesn't work"? Does the app show an error (with an specific error code), or the app just crashes? Also, I'm assuming you don't have this issue...

@OzOverlord For the TV & other devices that keeps disconnecting, go to their respective wifi settings and remove your network from the "saved networks". Then connect them to your network again with...

@Imb90 Set QoS to 1000 Mbps

@Mbauer5 See if this article answers your questions: How to set up The VPN Server/VPN Client Feature on a Deco Mesh Wi-Fi Router

@Alexmesh You're supposed to disable fast roaming & enable beamforming

@Gllambi What do you mean by "when I use it with other Wi-Fi modems it works"? Does another router gets you HBO Max (with the same modem), or changing the modem works? Is the issue happening across...