diff --git a/playbook/startnet.cmd b/playbook/startnet.cmd
index 5298a7c..b134482 100644
--- a/playbook/startnet.cmd
+++ b/playbook/startnet.cmd
@@ -318,6 +318,33 @@ echo.
 echo Starting GEA Shopfloor setup...
 start "FlatApp" %SYSTEMDRIVE%\GESetup\FlatSetupLoader.exe
 for /l %%i in (1,1,2000000) do rem
+REM --- Per-PCTYPE media view -----------------------------------------------
+REM PESetup's CopyPackages copies the WHOLE of <media>\Deploy\Applications to
+REM the target, recursively, with no filtering and no manifest (see
+REM docs/PESETUP-INTERNALS.md). One shared shopfloor media therefore hands
+REM every shopfloor payload to every bay whatever its type.
+REM _media\<PCTYPE> is that same media rebuilt out of symlinks by
+REM scripts/build-pctype-media.py, carrying only this type's payload. It is
+REM built once, server-side, and never mutated per session: bays image
+REM concurrently and CopyPackages is fail-fast, so changing a path mid-copy
+REM would fail some OTHER bay's imaging.
+if "%PCTYPE%"=="" goto gea_shopfloor_media_shared
+REM Free Z: first. A leftover mapping makes net use fail with "device already
+REM in use" and the probe below would then pass against the OLD media.
+net use Z: /delete /y >NUL 2>&1
+net use Z: \\172.16.9.1\winpeapps\_media\%PCTYPE% /user:pxe-upload pxe /persistent:no >NUL 2>&1
+REM Probe a file that only resolves when the view exists AND its symlinks are
+REM intact. A dangling view must not image silently off a half-mapped drive.
+if exist "Z:\Deploy\Control\HardwareDriver.json" goto end
+echo.
+echo WARNING: no usable per-type media at _media\%PCTYPE%.
+echo          Falling back to the shared shopfloor media, so EVERY shopfloor
+echo          payload will be staged on this bay, not just this type's.
+echo          Imaging is otherwise unaffected. Tell the PXE admin.
+echo.
+net use Z: /delete /y >NUL 2>&1
+
+:gea_shopfloor_media_shared
 net use Z: \\172.16.9.1\winpeapps\gea-shopfloor /user:pxe-upload pxe /persistent:no
 goto end