Drive Mapping over VPN - System Error 53 and RPC error 1726

I am stumped.  I have a Windows Server 2012 R2 machine communicating with a Windows 7 workstation over a VPN.  There is one mapped drive referred to as "G" drive.

the PC can see the G drive if I change it's IP address, Net View command works perfectly, however within 1 to 3 days, the drive mapping still shows, but the drive cannot be accessed.  Net View then returns an error 1726.  Change the IP again and it works again.

I have tried changing the NIC, and have wiped and reloaded the system, same issue.  Putting another PC in that spot seemed to resolve the issue, but I would like to repair this one if possible.
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CEORACEAsked:
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JohnBusiness Consultant (Owner)Commented:
When this happens to me (not frequently), Persistence is often at the root of the issue.  Try this:

Set up a script for the mapping:

NET USE G: /Delete
NET USE G: \\server\folder

Try this and see if the drive works properly now.
CEORACEAuthor Commented:
Sorry John, I wish it was so easy.  Once it decides not to work, no amount of mapping, whether GUI, scripted, FQDN, or IP address makes it work.  

Yet, the moment you change the IP, it is up and running again for 24 to 72 hours approx.
JohnBusiness Consultant (Owner)Commented:
Try the following:

Open cmd.exe with Run as Administrator
Then  netsh int ip reset c:\resetlog.txt
Also, ipconfig /flushdns followed by net stop dnscache followed by net start dnscache
Then restart the computer


See if the DNS Flush helps.
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CEORACEAuthor Commented:
John, In resetting the DHCP, DNS the IP changed and everything is working.  I know it will fail again in a few days if it follows its usual course and will try your solution then.

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LeeTutorretiredCommented:
I've requested that this question be deleted for the following reason:

Not enough information to confirm an answer.
JohnBusiness Consultant (Owner)Commented:
I suggested a solution in http:#a40820881  and CEORACE accepted my solution in http:#a40821036 . Accordingly my solution should be accepted.
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