# Impinj xSpan - Troubleshooting Connection

The xSpan reader should by default have DHCP enabled, allowing you to connect via:

- `<span class="editor-theme-code">http://xspan-XX-XX-XX.local</span>`<span style="white-space: pre-wrap;"> (where the X values are the last 3 bytes of the MAC address)</span>
- `<span class="editor-theme-code">http://<ip-address></span>`
- <span style="white-space: pre-wrap;">username: </span>`<span class="editor-theme-code">root</span>`
- <span style="white-space: pre-wrap;">password: </span>`<span class="editor-theme-code">impinj</span>`

<span style="white-space: pre-wrap;">However, if you're unable to connect, DHCP may be disabled, in which case you need to connect to the device on its local link address (most likely </span>`<span class="editor-theme-code">169.254.1.1</span>`) and use RShell to enable DHCP.

1. Determine the reader's self-assigned IP address by pinging the hostname:
    - Windows (PowerShell):
        - `<span class="editor-theme-code">ping xSpan-XX-XX-XX.local</span>`
        - <span style="white-space: pre-wrap;">You should see something like this: </span>`<span class="editor-theme-code">Pinging xSpan-13-68-53.local [fe80::216:25ff:fe13:6853]%11 with 32 bytes of data:</span>`
        - The address in \[brackets\] is the address of the reader.
    - macOS (Terminal):
        - `<span class="editor-theme-code">ping -c 1 xspan-XX-XX-XX.local</span>`
        - <span style="white-space: pre-wrap;">You should see something like this: </span>`<span class="editor-theme-code">PING xspan-13-69-b9.local (169.254.1.1): 56 data bytes</span>`
        - The address in (parentheses) is the address of the reader.
2. Log in via ssh and enable DHCP using RShell:
    - `<span class="editor-theme-code">ssh root@<ip address></span>`
    - <span style="white-space: pre-wrap;">password: </span>`<span class="editor-theme-code">impinj</span>`
    - `<span class="editor-theme-code">> show network summary</span>`
        - <span style="white-space: pre-wrap;">You'll likely see </span>`<span class="editor-theme-code">ipAddressMode='Static'</span>`. This confirms that DHCP is disabled.
    - `<span class="editor-theme-code">> config network ip dynamic</span>`
        - This will enable DHCP and reboot automatically.

After completing these steps, you should be able to access the reader on your LAN.