As shipped the HP Probook can take too long to wake from “Sleep”. Made in 2012 and tagged as deprecated in 2023
I found this post on MS Technet and have applied the advice to the WIFI adaptor. I found it using this google query.
I have tested it using the [fn] and [moon] button and it seems to work fine. I need to test it over a longer period but it may be safe to reconfigure the power management config to “Sleep on Lid Close” which should make using the laptop on a train commute feasible.
My laptop is an HP Probook 5320m.