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# Cannot boot one system, unable to delete from ggRock Web UI

### **Problem**

A single PC in the center is unable to boot, and it cannot be deleted from the ggRock Web UI.

The error message displayed may indicate "no more network devices".

### **Solution**

1. Within the ggRock Web UI, look for the Machine that will not boot. It should have an unchanging number of Sent/Received bytes (usually under 1 MB).

2. Run this command from the [**ggRock Server Console**](https://help.ggcircuit.com/knowledge/how-to-access-the-debian-ggrock-server-console) to view open TCP connection for your stuck Machine:

```
ss -H -t4n state established "( sport = :3260 and dst = YOUR_PC_IP_ADDRESS )"
```

(don't forget to replace the following with the IP address of the stuck machine:)

```
YOUR_PC_IP_ADDRESS
```

3. You should see one or two stuck connections. Last column will display your stuck Machine IP and then destination port, which you will need to kill the connection.
 
4. Run

```
ss -K dst YOUR_PC_IP_ADDRESS dport = CLIENT_PORT_FROM_STEP_3
```