Hey  @Joejoejoejoe,

I think myQ devices are relatively infamous for having trouble connecting to networks. I know that some users have had success with setting an IP Reservation for the device that is on the lower end of the range available. For others, setting the low IP was the only thing that would fix the problem, however, you may also try to connect this to your guest network, as this is typically a 2.4Ghz connection.

Otherwise, I would recommend looking at the support site for the myQ device, as they provide plenty of troubleshooting steps specific to myQ devices.

  @skb-here,

Before we go any further for troubleshooting, it may still be a similar situation if its a device problem - try Disabling the SPI Firewall Option on your Router and seeing if the device will be able to communicate.

If that does not allow the traffic to pass, try turning off the Real-Time Protection to see if this feature is causing the disconnect.

Lastly, if it is not a firewall problem, you could try changing the DNS server for your network to a different common service, such as Google or Cloudflare

  @skb-here,

If you are getting the server error,  they mention on their site that TCP port 8883 must be open to traffic on your network or else the devices on your network will not be able to connect to their servers. Try setting a port forwarding rule for your device.

You should also potentially look at assigning an address reservation for your device. There have been a few niche cases where oddball devices like RingChimes do not like to be assigned a high-ranging IP address for some reason. Others have mentioned that using a lower IP reservation has fixed some issues that popped up.

To clarify, is it the general myQ site that you cannot access, or is it a site-specific for controlling your devices?

  @skb-here,

The settings that I mentioned above will have a potential effect, as it affect how the Deco will forward the traffic through the network. It may simply be that the Deco is not automatically opening the ports for the garage automatically. If this is the case, see if you have enabled uPnP on your Deco network, as this will automatically open the ports when needed.

The old netgear router may work because UPnP is enabled - many newer routers and systems will not have this option enabled by default.

What specific Deco System Do you have? Do you have any parental control profiles setup? (Even if not for the device)

If possible,  try adding the device to either the Guest Network, or IoT network to see if there is a difference; using the Guest Network's isolation policies may allow for the device to communicate beyond the reach of your network.