how to fix connect ENETUNREACH on npm on linux

Question

i am not using a proxy im just a noob trying to learn how to develop with create-react-app locally on my machine(linux)

this is the output of tracepath registry.npmjs.org

 1?: [LOCALHOST]                        0.020ms pmtu 1500
 1:  2001:4451:664:1400:caf6:c8ff:fef2:bdcb                2.906ms !N
 1:  2001:4451:664:1400:caf6:c8ff:fef2:bdcb                0.995ms !N
     Resume: pmtu 1500

i think this proves im not using a proxy.

but i keep getting this error

npm ERR! code ENETUNREACH
npm ERR! syscall connect
npm ERR! errno ENETUNREACH

for anything npm. i dont know what to do.

i have tried..

1. deleting the package.json in my home directory. deleting the
2. package-lock.json in my home directory. deleting the .npm directory in my home direcory.
3. clearing the cache with the npm config command
4. setting https-proxy from the config to null setting proxy from the
5. config to null setting the registry to https://registry.npmjs.org
6. setting the registry to htpp://registry.npmjs.org uninstalled npm
7. and dependencies then reinstalled unintsalled npm and dependencies then installed nvm and reinstalled node through that

npm install --verbose doesnt say any error messages

please somebody help me, i try just about anything shy of reinstalling my os.

Answer 1

The issue is that node 18 (not happening on 16) is trying to resolve by ipv6 first.

Can override it by exporting the environment variable:

export NODE_OPTIONS="--dns-result-order=ipv4first"

Answer 2

I just solved this problem for myself by temporarily disabling IPv6.

On Linux here is the command I used:

sudo sysctl net.ipv6.conf.all.disable_ipv6=1

Answer 3

I was having the same problem and the above answers were not solving it. What I did is uninstalled everything and then installed all using NVM, which fixed the issue.