./paramfetch -a -v can not connect

[carsonfly]

After I type :' ./paramfetch -a -v'
downloading file... error: https://ipfs.io/ipfs/QmP1PkagfiC9cUEh3r7NEWaJfnBGEnqfABxXxh3PSoiMtX: error trying to connect: Connection refused (os error 111)
downloading file... os error 111error: https://ipfs.io/ipfs/QmbPHbry667qc7JEhYDWpvs6mj6rD9UQRi9ZpQb6q6pcoq: error trying to connect: Connection refused (os error 111)
....
But the network really work ,how can I solve it

[anorth]

Can you try to curl the same URL to confirm your connectivity to the IPFS gateway?

[dayou5168]

i got this problem in every release, we can't access https://ipfs.io in china , but the node can connect with the test-devnet though this error happens,
i really want to konw .how to solve this problem forever!

[frrist]

If you are unable to connect due to network issues you may generate the required files locally by running paramcache, this can be found in go-filecoin/proofs/bin.

[laser]

Note: paramcache is not a binary included in a go-filecoin release. It's something that only developers (PL and contributors) will have on their machine after running deps.

[frrist]

@carsonfly I am going to close this as there is not enough information to debug this problem, please reopen when you can share:

• geographic location paramfetch is being ran from.
• the output of traceroute ipfs.io
• the output of curl -v https://ipfs.io/ipfs/QmP1PkagfiC9cUEh3r7NEWaJfnBGEnqfABxXxh3PSoiMtX