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SD RED 60 Can not do SSL handshake on Socket accept from


We have a deployment from around 21 SD-RED 60 which are working fine.

Now I need to test something and want to deploy another SD-RED 60 which was also working fine in the past. But now the RED cannot open a Tunnel and the red.log shows the following.

I tested another RED which has the same issue.



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  • What are you looking for exactly? As I mentioned above, there are 21 Reds in place, and if I dump for any Port 3400, there will be a lot of noise.

    But now I´m perplexed. I changed the Gateway to an other IP for the Red and the tunnel is established. But this doesn't make any sense.