I have had a problem of putting my Macbook Pro to sleep then coming back to it a couple hours later to find it hot with a black screen and totally unresponsive requiring a forced shutdown. Some outside advice led me to try disabling "Wake for network access" and this did seem to fix the problem since I never used that feature. However I do want to use the feature now and I have reenabled "Wake for network access" and the problem has started again. Any ideas on exactly where the problem lies and how I can fix it? How can I pinpoint the problem? Specifics please. And thank you for your help.
Early 2008 Macbook Pro
El Capitan 10.11.6
Early 2008 Macbook Pro
El Capitan 10.11.6