Itunes 12.8.3.1 will not sync with iPhone on ios 16

I have a 2015 Macbook Pro on High Sierra. My iPhone 12 Pro is on ios 16.6.1. When I plug the phone in, iTunes states a software update is needed. When I click on “install” another window opens up and says it can’t due to a “network problem.” This seems to be a common problem and none of the solutions posted have worked. Might have found a solution on this forum: https://apple.stackexchange.com/questions/461301/mac-os-10-13-6-and-newer-mobile-devices-not-working-with-itunes-12-8-3-1-mobiled

But before trying this, has anyone on this forum tried it? The caveat is that you will not be upgrading your OS. It appears like a problem with the MobileDeviceUpdater app. Have talked to Applecare and searched with no luck until now.