I know this topic has been discussed several times on the forum.
I tried to apply everything I could find and I can't add a library via manage palette on node-red.
I always have the following message:
Solved! Go to Solution.
As you said solution was discussed several times before: You need to connect your ctrlX CORE to the internet.
Your settings look a little bit strange to me as you are using 192.168.1.1 as a gateway but your internet router seems to be connected in the 10.141.29.x subnet. If you are connected to a router with DHCP functionality that provides free internet leave the DNS and gateway open as you will get the correct one automatically. See this post.
If you are connected behind a corporate proxy (in a company network) and the router will not grant you free internet you will have to use a proxy to get it via your PC. See this blog post for further information.
See this post for a ctrlX COREvirtual.
I had done things wrong
I was connected to the router in wifi for internet on my pc and I used the same router with an ethernet cable connected to my pc and another connected to ctrlX to access the ctrlX.
I have disabled wifi on my pc and enabled windows dhcp.
I also removed the default gateway and the DNS for the ctrlX as you suggested.
I can install modules on node-red now.