Launch client jar signature is invalid

Ignition
1

I just upgraded one of my gateways to 8.3. I installed the latest version of designer, and now my gateways that are not updated to 8.3 I get “Launch client jar Invalid - This launch client jar signature is invalid. Contact and administrator.”

2

If your 8.1 gateways are older than the signing jar, you need to either upgrade the gateways (so that a signed jar is distributed) or adjust the 8.3 designer launcher to allow unsigned jars (worse for security). See advice in this thread:

3

I just tried this and still had no success. The gateway I am trying to connect to is 8.1.31. It is one that I can not upgrade right now. Any other ideas?

4

Make sure there are no instances of the designer launcher running, and make sure that your edit actually went through. There is also LOOSE, weaker than LENIENT: Launchers and Workstation | Ignition User Manual

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5

I tried a couple more times and it did work!! Thanks for your help!

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6

This is a small, but critical step!

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