# Unable to sync all AWS instance server onto Ansible Tower

**URL:** <https://forum.ansible.com/t/unable-to-sync-all-aws-instance-server-onto-ansible-tower/28793>\
**Category:** AWX Project\
**Tags:** aws\
**Created:** [October 16, 2018, 3:15am UTC](https://forum.ansible.com/t/unable-to-sync-all-aws-instance-server-onto-ansible-tower/28793 "2018-10-16T03:15:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Raj2](https://avatars.discourse-cdn.com/v4/letter/r/74df32/32.png) [@Raj2](https://forum.ansible.com/u/Raj2)\
**Post date:** [October 16, 2018, 3:15am UTC](https://forum.ansible.com/t/unable-to-sync-all-aws-instance-server-onto-ansible-tower/28793/1 "2018-10-16T03:15:36Z")

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I have around 30 Server Instances in AWS all having only the Private IP.  
In the ansible tower, I have used AWS access key and secret key and thus configured the credentials in the tower.  
When I start creating a new inventory, i fill all the necessary params in the inventory sources and then I sync the inventory. After syncing, I am able to see 2 or 3 instance in the host tab.  
I cannot see other hosts.  
Please help me resolving this issue.

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**Author:** ![Christopher\_Meyers](https://avatars.discourse-cdn.com/v4/letter/c/3e96dc/32.png) [@Christopher\_Meyers](https://forum.ansible.com/u/Christopher_Meyers)\
**Post date:** [October 19, 2018, 3:25pm UTC](https://forum.ansible.com/t/unable-to-sync-all-aws-instance-server-onto-ansible-tower/28793/2 "2018-10-19T15:25:13Z")

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Are the ec2 instances enabled? You can try running the dynamic inventory script manually to see how the results differ [https://github.com/ansible/awx/blob/2.0.1/awx/plugins/inventory/ec2.py](https://github.com/ansible/awx/blob/2.0.1/awx/plugins/inventory/ec2.py)