USB-C dongles are notoriously prone to breaking and also are another bunch of silicon and plastic that contributes to e-waste pollution.
though truth be told, most phone 3.5mm outputs suck donkey balls because of massive output impedance and signal to noise ratio on sensitive headphones (of which most portable audio devices are) and companies should be ashamed of putting these hunks of shit in their phones.
could be something fucked with your network settings or ports. if you have 2.4 and 5ghz modes try connecting your ipad to the mode different from the one used by your pc, works for me (edit: on android phone) and I still have no idea why