The 1769-SDN has a two-digit display to give you status and fault information.
Please tell us what numbers are shown on that display.
Tell us more about the slave devices, and about what behavior or indications change when you connect them to the DeviceNet network.
This might be an obscure software or firmware bug (which is why we have asked for version of the software and firmware) or it might be a simple installation problem related to wiring or data rate (which is why we are asking about the slave devices and the indicators).
One of the first things you should do is be certain that the 1769-SDN has been configured for the proper node number. Most DeviceNet products use Node 63 right out of the box, and of course your Master and Slave devices can't have the same address.
If you did have a "Duplicate MAC ID" conflict like that, the display on the 1769-SDN would show status code 70 on the two-digit display.
We have posted at the same time.
As you see above attached photo, All node numbers are right and EDS files have been installed correctly. Rslinx shows them as they are but Rsnetworx doesn't. Rsnetworx only shows scanner when I disconnect nodes.
I have just updated the firmware of scanner to 4.004