title: An error occurred (RequestExpired) when calling the DescribeInstances operation: Request has expired when I run the commend on AWS cloud9
body: <p>When I run the following shell script which can allow user to use port80 in aws, errors orruc:</p>
  <pre><code>MY_INSTANCE_ID=$(curl http://169.254.169.254/latest/meta-data/instance-id) # Get the ID of the instance for the environment, and store it temporarily.
  
  MY_SECURITY_GROUP_ID=$(aws ec2 describe-instances --instance-id $MY_INSTANCE_ID --query 'Reservations[].Instances[0].SecurityGroups[0].GroupId' --output text) # Get the ID of the security group associated with the instance, and store it temporarily.
  
  aws ec2 authorize-security-group-ingress --group-id $MY_SECURITY_GROUP_ID --protocol tcp --cidr 0.0.0.0/0 --port 80 # Add an inbound rule to the security group to allow all incoming IPv4-based traffic over port 80.
  
  aws ec2 authorize-security-group-ingress --group-id $MY_SECURITY_GROUP_ID --ip-permissions IpProtocol=tcp,Ipv6Ranges='[{CidrIpv6=::/0}]',FromPort=80,ToPort=80 # Add an inbound rule to the security group to allow all incoming IPv6-based traffic over port 80.
  
  MY_SUBNET_ID=$(aws ec2 describe-instances --instance-id $MY_INSTANCE_ID --query 'Reservations[].Instances[0].SubnetId' --output text) # Get the ID of the subnet associated with the instance, and store it temporarily.
  
  MY_NETWORK_ACL_ID=$(aws ec2 describe-network-acls --filters Name=association.subnet-id,Values=$MY_SUBNET_ID --query 'NetworkAcls[].Associations[0].NetworkAclId' --output text) # Get the ID of the network ACL associated with the subnet, and store it temporarily.
  
  aws ec2 create-network-acl-entry --network-acl-id $MY_NETWORK_ACL_ID --ingress --protocol tcp --rule-action allow --rule-number 10000 --cidr-block 0.0.0.0/0 --port-range From=80,To=80 # Add an inbound rule to the network ACL to allow all IPv4-based traffic over port 80. Advanced users: change this suggested rule number as desired.
  
  aws ec2 create-network-acl-entry --network-acl-id $MY_NETWORK_ACL_ID --ingress --protocol tcp --rule-action allow --rule-number 10100 --ipv6-cidr-block ::/0 --port-range From=80,To=80 # Add an inbound rule to the network ACL to allow all IPv6-based traffic over port 80. Advanced users: change this suggested rule number as desired.
  </code></pre>
  <p>The error message is:</p>
  <pre><code>  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                   Dload  Upload   Total   Spent    Left  Speed
  100    19  100    19    0     0   1266      0 --:--:-- --:--:-- --:--:--  1266
  hello
  
  An error occurred (RequestExpired) when calling the DescribeInstances operation: Request has expired.
  hello
  usage: aws [options] &lt;command&gt; &lt;subcommand&gt; [&lt;subcommand&gt; ...] [parameters]
  To see help text, you can run:
  
    aws help
    aws &lt;command&gt; help
    aws &lt;command&gt; &lt;subcommand&gt; help
  aws: error: argument --group-id: expected one argument
  usage: aws [options] &lt;command&gt; &lt;subcommand&gt; [&lt;subcommand&gt; ...] [parameters]
  To see help text, you can run:
  
    aws help
    aws &lt;command&gt; help
    aws &lt;command&gt; &lt;subcommand&gt; help
  aws: error: argument --group-id: expected one argument
  
  An error occurred (RequestExpired) when calling the DescribeInstances operation: Request has expired.
  
  An error occurred (RequestExpired) when calling the DescribeNetworkAcls operation: Request has expired.
  usage: aws [options] &lt;command&gt; &lt;subcommand&gt; [&lt;subcommand&gt; ...] [parameters]
  To see help text, you can run:
    aws help
    aws &lt;command&gt; help
    aws &lt;command&gt; &lt;subcommand&gt; help
  aws: error: argument --network-acl-id: expected one argument
  usage: aws [options] &lt;command&gt; &lt;subcommand&gt; [&lt;subcommand&gt; ...] [parameters]
  To see help text, you can run:
  
    aws help
    aws &lt;command&gt; help
    aws &lt;command&gt; &lt;subcommand&gt; help
  aws: error: argument --network-acl-id: expected one argument
  
  
  Process exited with code: 2
  
  Pane is dead
  </code></pre>
  <p>I have try the code in a new environment, there is no any problem with it, what's wrong in my system? How can fix it?</p>