connectivity to docker registry suddenly stopped

Question

Hello,  Suddenly I was not able to do any docker builds.  It seems that I am blocked from reaching registry-1.docker.io.  Any thoughts?  thx

root@xxxxx nginx]# nc -w 5 -v registry-1.docker.io
Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Connection to 34.226.69.105 failed: Connection timed out.
Ncat: Trying next address...
Ncat: Connection to 3.219.239.5 failed: Connection timed out.
Ncat: Trying next address...
Ncat: Connection to 54.196.99.49 failed: Connection timed out.
Ncat: Trying next address...
Ncat: Connection to 2600:1f18:2148:bc02:2640:1b90:cea6:b6b5 failed: Network is unreachable.
Ncat: Trying next address...
Ncat: Connection to 2600:1f18:2148:bc00:41e1:f57f:e2e2:5e54 failed: Network is unreachable.
Ncat: Trying next address...
Ncat: Network is unreachable.

Answer

Network Connectivity Issues: The Connection timed out and Network is unreachable errors suggest there might be a problem with your network connection.
1.Check the internet gateway has been attached to this subnet level:34.226.69.105
2.Check Firewall/Network Policies: Sometimes firewalls or network policies can block access to certain external IP addresses or domains.

connectivity to docker registry suddenly stopped

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