VinceB said:
Update:

At this morning's revelry, my mind was partially recalling what I had recently read at the Adobe Community Forum. I seemed to recall something about using a command prompt to block a specific internet "parameter" by use of "DWORD" in the command line, IIRC. (I will need to relocate those details, when my time permits. )

This notion--"to disallow an internet connection during a restart-up of the Adobe Acrobat Pro XI app "-- has indeed yielded a partial solution to my present Pro XI app problem.

So, this is what I did and the observed results:

I first switched off electrical power to my (FiOS provided) router to disallow communication between my PC and the Internet. Then I restarted the Pro XI app, which now loads and "stays alive". Then, I switched the router power back on. At this point, I was able to print an important PDF document, which is required by the US government . And, I saw that the Pro XI app "stayed alive" for several hours afterwards. After printing that document, I closed the Pro XI app. At restart-up, the app again shuts down, within ten seconds.

I have not done extensive testing of the app's operation during the workaround scenario. During my testing effort, I did not notice any buttons that were grayed out, etc.


So, for the time being, my workaround, partial solution is:

  1. Switch off router power
  2. Restart Pro XI app; wait 15 to 20 seconds
  3. Switch on router power
  4. Use the Pro XI app


I can use my imagination as to why this workaround is allowing the Pro XI app to load and remain "alive". Perhaps someone else can offer some insight for "why".



It is apparent that during that initial ten second interval following restart, the fact that a connection to the internet exists is somehow causing the Pro XI app to shutdown.


I do not know if this Pro XI problem is related to the recent installation of Microsoft Edge-Chromium update. However, I do know that things went sour during my very first attempt to print a PDF document via use of the Pro XI app that followed the installation of the (16th JUN 2020 released) update. Thus, I continue to believe that there is a cause-and-effect relationship between the MS Edge update installation and the Adobe Acrobat Pro XI app's shutdown within ten seconds after being restarted.

Of course, I rather not switch off electrical power to the router each time that I want to load and use the Pro XI app, because doing so interrupts several other devices that use the router, including house telephone and television service, and (partial) iPad operation. Nor would I want to disconnect/reconnect the NEC cable between PC and router.

Can someone offer guidance on toggling open/close the internet network connection, specifically and only for my desktop computer? (I recently placed a Microsoft USB keyboard into use; it would be kool if the "Office" macro key could be re-programmed to toggle the PC-to-router interconnection.)

Sorry for being so long-winded when composing this update to my OP, but I wanted to share my experience with you guys/gals. Again, my thanks for reading this.

Be well and stay safe.
VinceB.
To disable your internet right click on your wireless icon in the bottom right. Select Open Network and internet Settings. CLick on Change adapter options. right click on the wireless adapter and select disable