VLAN clients receives IP from DHCP but can't access internet

Hi! I've created a new VLAN and DHCP server for it on the firewall. The clients on the VLAN can successfully get an IP address from the DHCP server but cannot resolve websites / or have internet access. Any tips? See below DHCP server config & firewall rule:

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[edited by: emmosophos at 5:55 PM (GMT -7) on 22 Sep 2022]
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  • Hello there,

    Thank you for contacting the Sophos Community.

    Adding to what has been mentioned, try doing a GUI Packet Capture to confirm if the traffic is hitting a specific Firewall Rule and NAT rule.

    Diagnostics >> Packet Capture >> Configure >> Under "Enter BPF String" enter >> Save >> Turn On 

    Note: Use the actual current IP of the Windows computer

    After that do a ping to and see what the Packet capture shows, you might need  to click "Refresh"


    Emmanuel (EmmoSophos)
    Community Support Engineer | Sophos Technical Support
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