Unable to connect PC to PLC Via Ethernet

[S4TUX]

I recently started working with the built in Unitronics PLC US7-B5-B1 and I am unable to detect the PLC when connected via ethernet. It  works fine when connected via USB, I can detect and download a new software  just not via ethernet. 
Can anyone advise me on how to troubleshoot this? My end goal is to broadcast some tags using OPCUA and I installed an OPCUA client on my PC to test the connection but am not able to establish connection with the PLC. I figured troubleshooting the unilogic detection issue my help me resolve the OPCUA issue.
 

[Flex727]

1 hour ago, S4TUX said:

 

Broken link.

[S4TUX]

[S4TUX]

1 hour ago, Flex727 said:

Broken link.

It is an image showing the discovery window that pops up when you click on PC-PLC communication in Unilogic.

[Flex727]

Still broken.

[S4TUX]

Uploaded

[Flex727]

Is your PC on the same subnet as the PLC (10.2.5.xxx)?

Also, are you plugged into the correct Ethernet port on the PLC?

Are you using an Ethernet hub or a crossover cable?

[S4TUX]

Not sure how to make that determination but when I do IPconfig in CMD, I see my subnet listed as 255.255.255.0 and that of the PLC listed as 255.255.0.0 (not the same).
On the PLC IP panel settings in UniApps, I see the subnet mask listed as 255.255.255.0 same as mine.

[Flex727]

1 hour ago, S4TUX said:

I see my subnet listed as 255.255.255.0

That is your Subnet MASK, not your subnet. Your subnet is 192.168.0. You need to make the subnet match between the PC and PLC (the first 3 octets must be the same and the 4th octet different). The subnet of the PLC, as you show above is 10.2.5.

Also, are you certain that 10.2.5.83 is the IP address of the PLC? Even so, go into UniApps and change it to 192.168.0.xxx (anything other than 71). Or, you can go into your PC network settings and change your PC IP address to 10.2.5.xxx (anything other than 83). Once you do that you should be able to communicate if you are plugged into the correct port with a crossover cable or through an ethernet hub.

[Flex727]

Also, don't get confused between your wired ethernet address and your wireless address on your PC. When you do IPConfig in a command window, confirm which address is which since they are usually on different subnets. You want to make sure you use your wired IP address subnet.