# Connecting to a PLC on a DLR network

**URL:** <https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743>\
**Category:** Ignition\
**Created:** [June 8, 2023, 1:19am UTC](https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743 "2023-06-08T01:19:23Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![bebel](https://avatars.discourse-cdn.com/v4/letter/b/43a26b/32.png) [@bebel](https://forum.inductiveautomation.com/u/bebel)\
**Post date:** [June 8, 2023, 1:19am UTC](https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743/1 "2023-06-08T01:19:23Z")

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I see some discussions about connection problems asking the person to verify that ports are not set up in DLR mode but I can't find anything about what to do if they are on a DLR network. I have a L72 v24 with a EN2TR in slot 1. I'm assuming there is an E-Tap in the ring. I'm working remotely and I don't have the prints for that plant.  
Any advice?

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**Author:** ![andrews](https://avatars.discourse-cdn.com/v4/letter/a/898d66/32.png) [@andrews](https://forum.inductiveautomation.com/u/andrews)\
**Post date:** [June 8, 2023, 6:21am UTC](https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743/2 "2023-06-08T06:21:24Z")

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> [@bebel](#):
>
> I'm assuming there is an E-Tap in the ring.

Don't assume.

Get someone to physically verify.

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**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [June 8, 2023, 12:00pm UTC](https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743/3 "2023-06-08T12:00:15Z")

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Why would you care if ports are set up in DLR mode? DLR mode ports that aren't actually connected in a ring behave as a three-port switch transparently. If you can reach that chassis and its processor at all, DLR mode is not itself the problem.

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**Author:** ![kyler.kamyszek](https://avatars.discourse-cdn.com/v4/letter/k/a4c791/32.png) [@kyler.kamyszek](https://forum.inductiveautomation.com/u/kyler.kamyszek)\
**Post date:** [June 8, 2023, 1:04pm UTC](https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743/4 "2023-06-08T13:04:54Z")

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My number 1 reason for not being able to connect to a PLC over a network is that the default gateway is not set on the PLC.

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**Author:** ![bebel](https://avatars.discourse-cdn.com/v4/letter/b/43a26b/32.png) [@bebel](https://forum.inductiveautomation.com/u/bebel)\
**Post date:** [June 8, 2023, 3:40pm UTC](https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743/5 "2023-06-08T15:40:03Z")

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I was sent this Linx tree and that shed more light on it. I ended up using the 188 IP address and a path of 1,16,2,192.168.48.189,1,0

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/d/b/dbb93e516e7afc6c0f9a766a11d30fff52fc4538.jpeg)

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**Author:** ![bebel](https://avatars.discourse-cdn.com/v4/letter/b/43a26b/32.png) [@bebel](https://forum.inductiveautomation.com/u/bebel)\
**Post date:** [June 8, 2023, 3:41pm UTC](https://forum.inductiveautomation.com/t/connecting-to-a-plc-on-a-dlr-network/74743/6 "2023-06-08T15:41:11Z")

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Good advice. We found that the connection to the DLR was actually through a second network card in one of the racks which put us on the correct path to the PLCs.