I would try reinstalling the iPad app as the first troubleshooting step and if you’re still having issues afterwards please let me know the model/manufacturer of your Router, any network switches, range extenders, powerline adpaters, ect. that you may have in your setup.
How exactly is the iPad hanging? Does this happen with a specific set of actions or does it occur with normal usage? Does it happen only when you exit the Roon app and go back to it or is there a set of steps that you can use to reproduce the issue consistently?
How is your Laptop connected to the network, is it on WiFi or Ethernet? Is the behavior the same if you connect it via Ethernet?
Ethernet
Does the same behavior occur across multiple Roon Remotes or is this limited just to the iPad?
I didn’t notice that on iPhone but I’m not using it too often
Are you using any resource-intensive apps on the iPad when this issue occurs or have them open in the background?
Nothing what should heavily utilise ipad
What kind of switch are you using – Is it a managed switch or unmanaged?
It’s ubiqutii switch with can be managed
You mentioned Ubiquiti AP Plus and a SG, what do you mean by “SG”?
Secure gateway
Thanks for providing that information. Can I ask you to perform the following:
Reproduce this issue once more and note the exact local time in your country that you experience this behavior (ex. 12:51PM), if you are able to reproduce multiple times please list a couple.
Note any sequence of actions that you were doing right before this issue occurred - Locking the iPad, browsing to a specific section of the App, going to another app and then going back to Roon, ect.
Once I have this information I will then enable diagnostics mode for your account and take a look to see if there are any clues “under-the-hood” as to why this could be occurring