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How do I access a Domain Computer via a Direct Connection

Posted on 2016-07-27
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Last Modified: 2016-08-07
I have an older model CNC machine that requires a direct connection to a host PC. That PC is also part of a domain. To solve this, a second NIC was installed into the Domain PC and given a separate IP address with a different netwokr id (192.168.2 vs. 10.1.50). The CNC controller can ping the host PC, but I cannot get it to connect and extract the files needed. Since I can ping the host, my belief is that it has to be a permission problem. Complicating this is that there is no DNS server available to that CNC thus there is no way to resolve the server name. Recognizing that, the IP address was used instead, but still no connection. Any ideas? The OS on the CNC is Windows CE; the host is running W7 Pro.
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Question by:rpbiship
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by:gilnov
ID: 41731714
In the Network and Sharing Center control panel under Advanced settings on the left, make sure File and Printer Sharing and Network Discovery are switched on for which ever profile (Home, Public or Work) the CNC subnet is in.
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by:rpbiship
ID: 41731908
That has been done. Still cannot connect, however.
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by:gilnov
ID: 41732233
What about firewall settings? Turn it off completely and test. But you can't leave it completely off. We just need to see if it's stopping the connection.
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Author Comment

by:rpbiship
ID: 41733345
Firewall was turned off; still no connection. Pings are intermittent as well. Sometimes there is 100% response; sometimes there is loss. The cable is only 35 feet long and is a crossover cable connecting the two computers. Pings are one way. The HOST Workstation will only see the CNC computer once in awhile. I attribute this to the fact that the HOST itself is part of a domain, is connected to a DOMAIN, while the direct connection is a secondary network although the main network for the CNC computer. There is no way to assign both ends to a separate workgroup.
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by:gilnov
ID: 41733356
What happens if you lose the crossover cable and connect the CNC and PC via a mini switch?
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Expert Comment

by:Member_2_7970094
ID: 41737404
Sorry about the late response, I did not see this before. What you have suggested is how we originally set up the CNC mill. Late last year we started having network connectivity issues, which were resolved to a large degree but not eliminated. For the past 2 weeks, however, we have experienced 75% downtime hence the direct connection try. We are in contact with the Support team to see if perhaps our problem is hardware related on the mill.
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by:gilnov
ID: 41737710
That fits the symptoms. NIC's can and do go bad.
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Accepted Solution

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rpbiship earned 0 total points
ID: 41739156
All indications are that the Main Control Board on the CNC mill is bad; support has been called. Question closed.
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Author Closing Comment

by:rpbiship
ID: 41746087
Issue was not a network problem but hardware related
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