Connect to server behind NAT

Questions regarding the use of the UaExpert.

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christian.schoch
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Joined: 06 Aug 2021, 14:20

Connect to server behind NAT

Post by christian.schoch »

If I connect in the same subnet to the server, it works

if I try to connect to my server on a plc through 1:1 NAT I get "BadCommunicationError" I found an article that this issue is caused by client implementation.

Is there a setting in UA Expert to make the connection possible

KR

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Support Team
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Re: Connect to server behind NAT

Post by Support Team »

Hi,

first part of the analysis: can you ping the UA Server's IP?
second part: can you ping the UA Server's name?

OPC UA requires a functional network infrastructure, in the best case with a functional name resolution (DNS). If all that is running fine, give it a try with UaExpert again.
Best regards
Unified Automation Support Team

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