Disconnections on mobile phones.

What system are you using?

Ubuntu 22.04

What went wrong?

I’m facing a connectivity issue specifically on my Android device (Samsung Fold 6). When the phone is idle for even a short time—around a minute or less—it disconnects. Upon unlocking or waking the device, it takes about 10 seconds to reconnect, during which I receive delayed notifications like WhatsApp messages and missed calls. I’ve already granted all necessary permissions and disabled memory optimization for both the Karing and Singbox apps. Interestingly, this issue doesn’t occur on my iPhone.

Any other helpful information?

What i do is i keep my iphone and android aside and keep them there for a minute and so and then ask someone to whatsapp call me. I get the call on my iphone and but on android no call. when i open my android app it gets connected after 5 to 10 seconds and then get all the calls at once. there is no battery saving mode on my android either.