I have iPhone pro 16 and iPad Pro 2024, both with mosaic app installed. Both connected to same router by WiFi. All setting in WiFi in iPhone and iPad are same except for the device ip. Both iphone and iPad can access my DCS Rossini if I enter Rossini ip in to the browser, but only iPhone can access Rossini using mosaic app, iPad just keeps “looking for devices”. Deleted and reinstalled mosaic app on iPad- didn’t help. Tried manually typing Rossini ip in mosaic app- doesn’t help.
Rebooting Rossini or router didn’t help. Factory reset on Rossini- didn’t help.
iPad is updated- app version 1.4.4 (161)
Front panel/control- 2.10
Network board- 1.4.4 (527)
What could be the problem?
Strange thing but now tried and the old DCS Rossini app on iPad connected without any problems.
Contact support explaining your problem:
This is the official support forum and my problem already explained in my main post.
No it isn’t. This is a community forum. That is it is basically a dialogue between dCS customers. We will offer some support if we have an answer but aside from my advice there has been no other for you at the time of writing. dCS themselves have a dedicated support team and you should contact them as they have vast knowledge and will assist.
dCS support staff do visit this forum from time to time ( often asking you to do what I suggest; email them) but irregularly and can pass over individual postings if their attention is not caught. That is why I suggest direct contact.
Hi Givara,
@Phil from support will be happy to help you with this but one thing you can try in the meantime is manually connecting from the iPad. When you see the “looking for devices” message in Mosaic hit the cogwheel top right and enter the IP address of your Rossini (aaa.bbb.ccc.ddd). Please let us know if that helps.
The browser uses a different protocol. The fact it is working rules out some possible causes but unfortunately doesn’t explain why Mosaic is working fine from one device but not the other. Seems to point to a Mosaic problem local to that device. Have you tried deleting and reinstalling Mosaic on the iPad?
BTW you don’t have to obscure the IP addresses. The ones that start 192.168 are local to your home network (and the same as almost everyone else’s) and meaningless outside that so can’t be used in any way to attack you.
Thanks for trying to help. Sure I tried reinstalling the app on my iPad, didn’t work. Can I provide any additional info that can help solve my problem?
The only other thing I can think of to check is that Mosaic on your iPad is allowed to access the local network (Settings/Apps/dCS Mosaic/Local Network) - it might conceivably have been disabled by some security setting.
If that doesn’t help I’m afraid I’m going to have to hand over to @Phil.
I’m guessing maybe your iPhone and iPad don’t actually have the exact same settings - check if your iPad has Private WiFi turned on, in which case switch it OFF, you don’t need it at home.
Apple’s Private WiFi setting virtualises the MAC address of your iPad which cam cause problems with some Access Point properly routing Ethernet frames.
That did cross my mind Anup but according to OP the old Rossini app is working from the same iPad that Mosaic is not working from. But worth a try I guess.
Top one. It is on (but could have been off). Sorry, I’m out of ideas. Paging @Phil.
True, bit of a puzzle, but we’ve seen this problem before, almost always iOS related. Here’s an example way-back when Pete had the same problem resolved by switching off Private Wifi;
Happy Independence Day btw! 
Thanks for reminding me Anup. I have been racking my brains (what remains 
) trying to remember the function’s name. Private Address.I seem to remember this as a substantive option at the time. My current iOS device running 18.5 has an option configuring wifi access to my LAN and remembering password. but this would seem to affect all apps running on this device which I understand continue to function. Worth @Givara checking nevertheless .
I think my original suggestion for him to contact support directly seems apposite.
Ok, I updated my iPad ti iOS 18.6 and now mosaic works. But the weird stuff is that the iPhone wasn’t updated and had no issues with mosaic having old iOS 18.5 same as my iPad before I updated it 10 min ago.
Go figure! Really glad you’re up and running! 
Pretty sure the iOS upgrade wasn’t the actual solution, it was the AP/Switch’s ARP Cache getting flushed.