I have problem in GC6890 ,I can not connect with open lab and a message appears licensing error
A direct connection from the GC to the workstation with a crossover cable is the most stable connection you can setup.
Here is a description of a crossover cable: Ethernet crossover cable - Wikipedia
Most crossover cables will have the word "Crossover" printed on them or be labeled as such. Other than that, you can also look at the wiring at the RJ45 connectors and compare to the pinout in the Wikipedia article.
I added tags to this post to increase visibility.
OpenLab licenses are tied to two things on your PC: the computer name and the MAC address. If this license has worked in the past but now has stopped working, then the first things you want to check are if the computer name has changed or if the MAC address that was used in the license file is no longer detected in Windows (maybe a NIC was replaced).
Details on how you can check this information can be found in this FAQ document: FAQ: How to Generate the License File in SubscribeNet | Agilent
If there was a change in the computer name and/or MAC address, you will need to return your current license and generate a new one with the PC's current computer name and MAC address. The following FAQ outlines how to return your license in subscribenet: How do I Return an Existing OpenLAB CDS License in SubscribeNet? | Agilent
Hopefully this helps.
Thank you for your response
Today when you open the GC we noted the increase returned valid but not connected and the Remote LED off
we tried to configuration instrument but a message appears(failed to connect to 6890 at 100.100.100.101)but the GC IP:100.100.100.101,when Checked configuration not configuration
Are you able to ping the GC at 100.100.100.101? If not, then you might want to verify the IP address assignment on the instrument and that the PC and GC are on the same subnet.
try to use the referenced MAC address, it's obviously not the same.
also check the computer name matches hostname.
I hope that will help.
sorry to delay the response because of the weekend,
After I checked MAC and pc name and ping I got image below less100%.
Despite we changed the internet cable but problem it's not solved .
sorry this ping photo
If you are unable to ping the instrument's IP address from the ChemStation PC then this would explain why you are unable to connect to the instrument.
Is this a 6890A, 6890plus, or 6890N? If it is a 6890N then you should be able to check the IP address of the GC by going to [Options]>[Communication] on the instrument's front keypad. If it is an older 6890 model then we would need to determine what model LAN card you have installed (model number should be on a sticker on the back of the GC near where the RJ45 port is where you plug in the ethernet cable. Depending on the model LAN card you might need to use bootp to assign an IP address or you might have the ability to store an IP address using telnet.
Mr.moritz ,Mr.ryoboyle Thanks for your response.
we have 6890N,the IP address of the GC :10.10.172.121 and IP address of the PC 10.10.172.120
We've changed the cable many times but problem not solved and we cannot ping. after that we connected the GC to another PC use in DHA GC(7890B) after ping we got (sent=4,received=4,lost=0(0%loss) so we concluded the problem not in GC it is in PC LAN card.(LAN card Internal in mother board)
The IT person thought we must change the PC and install open lab in it.
Is that conclusion correct? is there another solution?
I do not have enough information to jump to the conclusion that you need to replace the PC. It is possible that you are unable to communicate to the 6890N on this PC due to the NIC not being setup correctly, not necessarily because the NIC is defective.
I would trust your IT person as they should be able to verify that then NIC is setup correctly and the PC and GC are on the same subnet. In the picture you included it shows that the adapter is reporting "network cable unplugged". Does it say that when the GC is powered on and there is a crossover cable connecting it to the NIC? If so, then there might be an issue with the RJ45 port on the NIC if it is not detecting that a cable is plugged in.
You mean I should connect GC and PC with crossover cable to check RJ45 port
? Is crossover cable same CAT6 or different
? How can I recognize crossver cable
Many thanks for very useful reply Mr.ryoboyle.
I asked internet department to get crossover cables ,they modified straight cable to crossover cables.
A good news after we connected crossover cables between GC and PC the LED remote lighted and open lab soft wear connected with GC,then we injected dry gas sample and now GC OK.
Retrieving data ...