SCCM PXE Error after booting – The certificate associated with this media has expired
you boot into configuration manager and you get this message which just makes your day:
Error: the certificate associated with this media has expired. New Media with a valid certificate will need to be created.
This is pretty easy to fix assuming you have a self signed certificate. To do so:
1. Log into you SCCM server and go to Site Database → Site Management → Site Settings → Site Systemsand select the SCCM server that maintains your PXE load point
2.In the right hand side pane, right click on the “ConfigMgr PXE service point” and choose Properties.
3. Select the Database tab and look for the the Create self-signed PXE certificate option in the lower half of the screen.
4. here you can change the date for the self signed PXE certificate to a date in the future then choose OK
5. To verify that all is now OK go to Site Database → Site Management → Site Settings → Certificates.Double click on the PXE certificate and make sure that there is an entry that is NOT listed as blocked
6. from here you should be able to boot into the boot media without issue. however, if the certificate has expired you will need to re build your boot media.
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