@DTS Engineer Thank you for the reply, I have tried resetting my router, restarting my Mac, and also tried different networks. But it's the same issue. I don't have firewall or Anti virus installed and still same error. Xcode is fully updated (latest) MacOS is Tahoe 26.1 (latest) As you can see, using cli still throws similar error ➜ ~ xcodebuild -downloadPlatform iOS Finding content... Automatically resolved architecture variant for platform iOS as 'arm64'. 2026-01-07 22:09:14.742 xcodebuild[71859:6206960] DVTDownloadable: Download Failed. Downloadable: { architectures = ( arm64 ); authentication = none; category = simulator; contentType = cryptexDiskImage; dictionaryVersion = 2; downloadMethod = mobileAsset; fileSize = 8388683973; identifier = "com.apple.dmg.iPhoneSimulatorSDK26_2_arm64"; isInternalContent = 0; isUserInitiated = 1; name = "iOS 26.2 Simulator (23C54)"; patchableFrom = ( ); platform = "com.apple.platform.iphoneos"; simulatorVersion = { buildUpdate = 23C54; version = "26.2"; }; version = "26.2.0.0"; }. Download failed. ➜ ~ Note: there's no iOS 26.x Simulator at https://developer.apple.com/download/all/?q=26.2 as opposed to previous versions which can be found here.