XCode 26.5: cannot Copy shared cache symbols from Apple Watch

The process of copying shared cache symbols from my Apple Watch has been horrendous. I cannot even get past 2% complete before this process fails.

Every device is on the same network. I have trusted my machine. Developer mode is enabled on the watch. I have successfully paired the phone and watch. I managed to install an Watch app onto the watch. But the shared cache symbols were never copied from the watch.

I gathered several commands at the terminal to help me.

rm -rf ~/Library/Developer/Xcode/DerivedData
rm -rf ~/Library/Developer/CoreDevice
sudo killall -9 remoted CoreDeviceService 2>/dev/null || true
xcrun devicectl manage ddis update
xcrun devicectl list devices

Clear CoreDevice state. With Xcode quit:
rm -rf ~/Library/Developer/Xcode/DerivedData
rm -rf ~/Library/Caches/com.apple.dt.Xcode

Reset Xcode's Local Network permission.
tccutil reset Local-Network com.apple.dt.Xcode
tccutil reset Bluetooth com.apple.dt.Xcode

xcrun devicectl device info hardware --device MY_DEVICE_ID

xcrun devicectl list devices

ping -c 3 MY_IP_ADDRESS

Confirm no VPN/proxy/filter is lurking
scutil --nwi

ifconfig | grep -E "utun|ipsec|tap|tun"

xcrun devicectl device info details --device  MY_DEVICE_ID
xcrun devicectl manage pair --device MY_DEVICE_ID

I keep obtain this type of error:

Unable to copy shared cache files
Domain: com.apple.dt.deviceprep
Code: -33
User Info: {
    DVTErrorCreationDateKey = "2026-05-20 23:41:00 +0000";
    NSLocalizedRecoverySuggestion = "";
    "com.apple.dt.DVTCoreDevice.operationName" = dtfetchsymbols;
}
--
The operation couldn’t be completed. No route to host
Domain: NSPOSIXErrorDomain
Code: 65
Failure Reason: No route to host
--


System Information

macOS Version 26.5 (Build 25F71)
Xcode 26.5 (24943) (Build 17F42)
Timestamp: 2026-05-20T16:41:00-07:00

Does anyone have ideas to help me overcome this nightmare?