Our upgraded line of business app is crashing

Our physical therapy business recently upgraded our eon systems documentor2 software and it was upgraded to ver 5.1   At the same time, we added 3 windows 8.1 laptops to our network.
Since then, about 3 weeks ago, we have experienced random crashes and errors. I'm the IT guy, and have installed a new server (windows 7 pro desktop) and have tried about every networking possibility to troubleshoot this. The vendor has tried everything they know . The app is built on Visual Foxpro 9.

I am about to try bringing one of my servers (windows 2008 or 2012 ) over to try this because nothing else works. Network connectivity seems solid from each desktop to the server, no error in server event logs. (need to check more in desktop logs)

At this point I'm running out of ideas and am wanting some more ideas for troubleshooting. I have a long list of things I've already done.

Thanks for any help.
NPTDaveAsked:
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Dave BaldwinFixer of ProblemsCommented:
My client who uses Visual Foxpro 9 installs the program on all the computers and puts just the data files on an NAS.  Visual Foxpro 9 is getting a little bit old now.
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AkinsdNetwork AdministratorCommented:
A server platform may be a good idea. Check the application's software and hardware requirements especially processor and memory. Most robust apps (esp line of business apps) now require multiple processors which in turn require a decent amount of memory (available to each processor) to function optimally.

Have you contacted the manufacturer of the product?
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NPTDaveAuthor Commented:
the manufacturer has not resolved the problem either
all the changes I've made are calming things down, we are starting to see a pattern in the errors now

there is hope....
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AkinsdNetwork AdministratorCommented:
Good to hear that
A problem is half solved when it is identified.

All the best
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NPTDaveAuthor Commented:
please make this resolved so I can ask more questions
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AkinsdNetwork AdministratorCommented:
What was the resolution?
Did any input above contribute to the resolution?
Help other users who may have similar issues find pertinent solution.
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NPTDaveAuthor Commented:
I resolved it
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AkinsdNetwork AdministratorCommented:
Not disputed, What was the solution?
If not delete the entire question if you can't share what you did to resolve the problem.
Remember, this site is about helping others, that's why we volunteer to help people resolve their problems.
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