06-24-2014 11:34 AM
My LAN card now has 2 IP addresses if i set the IP address to static. When i plug in my ethernet cable, a second IP address becomes active that was not assigned. The IP address happens to be 169.254.106.61. When i unplug the cable, the aforementioned IP address disappears and only the assigned address is visible. This started after labview was installed and its only a problem for the people at our company who have installed labview. I have uninstalled labview and its still a problem. This is causing a problem for other application programming software i have installed.
06-24-2014 01:54 PM
This is a linklocal (APIPA) address and I don't see that on any of my computers that have LabVIEW installed.
Can you give us a list of modules, toolkits, and drivers that are installed? What is your LabVIEW version? What is your OS?
If this is on windows, can you show us the output of ipconfig from a commandline?
06-24-2014 03:17 PM
this is windows 7. I have uninstalled all of the labview applications yet i still have the problem. Perhaps it is not an NI problem. I have attached the screen shot of the CMD ipconfig command
06-24-2014 03:24 PM
Why does the linklocal address not show? Can you scroll down or enlage the window?
06-24-2014 03:36 PM - edited 06-24-2014 03:38 PM
@altenbach wrote:
Why does the linklocal address not show? Can you scroll down or enlage the window?
I believe he is referring to this:
Unfortunately I don't have many suggestions aside from checking in the "Nework and Sharing Center" in the Windows 7 "Control Panel". Perhaps you have an extra virtual adapter installed. Or your IPv4 on your ethernet adapter needs reconfigured. [Although I would doubt this is LabVIEW related.]
EDIT:
What I mean by that, is check for additional network adapters. If so, remove them.
Otherwise, check for weird settings such as a private IP address in here:
06-24-2014 03:41 PM
Here is another image showing the link local. I would agree that it probably isnt an NI issue at this point.
06-24-2014 03:41 PM
Ah, sorry I missed that.
What do you see in "Control Panel\Network and Internet\Network Connections".
06-24-2014 03:45 PM
I've never seen this before. So I googled it and came across multiple hits that talk about "multihoming".
Since you said multiple PC's on your LAN are showing the same problem, I'm going to bet that your IT dept. did something. It seems like a dumb idea to me, but maybe they have their reasons. Talk to them.
Is this causing you specific problems?
06-24-2014 03:46 PM - edited 06-24-2014 03:47 PM
@RavensFan wrote:
I've never seen this before. So I googled it and came across multiple hits that talk about "multihoming".
Since you said multiple PC's on your LAN are showing the same problem, I'm going to bet that your IT dept. did something. It seems like a dumb idea to me, but maybe they have their reasons. Talk to them.
Is this causing you specific problems?
I would agree with this.
However, you should be able to manually see all the IPs within your IPv4 settings:
But I wouldn't mess with this unless you really know what you're doing and/or it is giving you horrible, unusable issues.
06-24-2014 04:16 PM
Thank you all for the help. The symptom is that my cognex insight cannot find cameras on my fixed IP network because its using the phantom IP address assigned by the IPV4. Cognex indicated i should reinstall my NIC drivers which sounds like a bad plan.
Thanks again for all your help.