About lotus daemon

Hi guys,
I have installed lotus in Ubuntu18.04.3 LTS.
I meet two problem when I implement lotus command. pls kindly help me!
1, run “lotus daemon” show “dial tcp” i/o timeout"
2, run “lotus net peers | wc -l " show"could not get API info”
please see the picture of attachment.
Thanks every one!

The 2nd problem is caused by the 1st problem.
for the 1st problem you need to check
1 if you are in China, you need to set


and you need to check

Default config:


ListenAddress = “/ip4/”

Timeout = “30s”