Yes go ahead and remove the old one.l please.
Commands have been sent at this time, please allow about 5 minutes for the command to resolve. You may need to log out of your ADC account, then back in.
Ok so what do I do as I could t even setup the WiFi connection of the hub unless I went through the MyQ app?
In some cases you need to use the myQ app to get the new unit connected to the local network, but you can skip the part where you tie the gateyway/hub to the myQ account directly.
If the gateway is connected to the network atm with a solid green led, you should be able to just remove the gateway/door from the native myQ app then tie it to your ADC account.
After removing the myQ equipment from the nativeapp, wait about 10 minutes or so for the pairing information to be purged from the myQ app. Then open close the garage 3 times in a row from the wall button. This helps to resync the myQ unit.
Afterwards, via Alarm.com website navigate to Settings > Manage Devices> Add Device > and select the myQ hub/gateway you are adding to begin the pairing process.
More installation pairing instructions can be found below