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Is MyIP set to the wrong security group?
Please visit the following site to check your IP address.
https://checkip.amazonaws.com/
Other items to check are that the EC2 IP address has not changed.
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- 已提問 5 個月前
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I checked both and all set-up correctly. every EC2 connected with its security group. is that related to ACLs ? once I replaced MyIP to 0.0.0.0/0 it works.
If you have also changed the network ACL settings, please allow it with your IP in the inbound rules.
For outbound rules, set the port range to "1024-65535" and set the IP address to your IP and enter the allow setting, or set the allow setting to 0.0.0.0/0 and you should be able to communicate. https://docs.aws.amazon.com/ja_jp/vpc/latest/userguide/vpc-network-acls.html