User level: Level 1 (72 points)I updated my iphone to ios 27 and, when I connected it to my mac (OS 10.13.6) received a message that an update was required. When I tried to do the update I got an unspecific network error message. Happened on two different macs. Any ideas what's happening? Thanks.
Posted on Oct 10, 2026 3:23 PM
User level: Level 9 (55,707 points)Oct 11, 2026 5:17 PM in response to mgeller47
It should work - but for the past several years, there have been threads about trouble managing iPhones running the latest version of iOS from Macs running High Sierra. I could be wrong, but it seems very hit and miss as to who gets hit with the problem and who doesn't.
I do not know if your particular error message might be related to another change that Apple made recently: raising the minimum requirement for iCloud from High Sierra to Mojave.
User level: Level 10 (162,806 points)Oct 10, 2026 5:46 PM in response to mgeller47
It should work.
Perhaps it really is a network problem. Try again some other time.
Rule out the usual causes... non-Apple "security" products, "coffee shop" VPNs, that sort of junk. Ought to go without saying.
User level: Level 7 (22,314 points)Oct 12, 2026 12:38 AM in response to mgeller47
Also make sure the devices' Wi-Fi is NOT set to use "Low Data mode" which reportedly might prevent OS downloads (thanks to Neuroanatomist for this tip).
Originally posted at discussions.apple.com/thread/256373898