# AQUILA EDR Connection Issues - Windows
When Elastic Agent installs Endpoint, they connect locally to share status and updates. If this connection fails, Elastic Agent shows as Unhealthy, and Endpoint won’t work properly.
---
**How to Check if There's a Problem**
1. **Check Agent Status**
Open PowerShell as Administrator and run:
```c#
& "C:\Program Files\Elastic\Agent\elastic-agent.exe" status
```
[](https://cytechint-docs-bookstack.s3.amazonaws.com/uploads/images/gallery/2025-06/tBJU2E0EmwzVfnvT-image.png)
Look for messages like:
- Endpoint has missed check-ins
- localhost:6788 cannot be bound to
2. **Check Endpoint Settings**
Open this file:
```c#
C:\Program Files\Elastic\Endpoint\elastic-endpoint.yaml
```
Find the line that says fleet.agent.id.
If the value is 00000000-0000-0000-0000-000000000000, the connection failed.
---
**Check the Logs**
Look for these messages in the Endpoint logs:
- Failed to find connection to validate. Is Agent listening on 127.0.0.1:6788?
- Failed to validate connection. Is Agent running as root/admin?
- Unable to make GRPC connection in deadline(60s)
These show a connection problem between Agent and Endpoint.
---
**How to Fix It**
1. **Run Diagnostics**
Run this command on PowerShell as Administrator:
```c#
& "C:\Program Files\Elastic\Agent\elastic-endpoint.exe" diagnostics
```
[](https://cytechint-docs-bookstack.s3.amazonaws.com/uploads/images/gallery/2025-06/2AubRnNDfIX5yOIV-image.png)
Follow this file path to retrieve the Diagnostics Zip file created.
[](https://cytechint-docs-bookstack.s3.amazonaws.com/uploads/images/gallery/2025-06/CdoIr2jXD7bLcf3Z-image.png)
This will generate a report with possible causes.
2. **Check if Ports Are Used by Something Else**
Run these:
```c#
netstat -an | findstr :6788
```
```c#
netstat -an | findstr :6789
```
If another program is using these ports, it could block the connection.
3. **Test if Localhost Works**
Run this:
```c#
ping -4 localhost
```
It should respond with 127.0.0.1
*Reference Link: [https://www.elastic.co/guide/en/security/8.18/ts-management.html](https://www.elastic.co/guide/en/security/8.18/ts-management.html)*
*If you need further assistance, kindly contact our support at **support@cytechint.com** for prompt assistance and guidance.*