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Thank you for your responses.<br />
<br />
Following &nbsp;Syed's post I checked the settings using ipconfig /all<br />
When I manually configured the NIC I had used the SonicWALL IP as the DNS server (192.168.16.1). The DNCP configuration was using 208.67.222.222 (the IP that the SonicWALL had been configured with).<br />
<br />
DNS settings was the issue. I'll award points to both Syed &amp;&nbsp;Perarduaadastra.
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Thank you for your responses.

Following  Syed's post I checked the settings using ipconfig /all
When I manually configured the NIC I had used the SonicWALL IP as the DNS server (192.168.16.1). The DNCP configuration was using 208.67.222.222 (the IP that the SonicWALL had been configured with).

DNS settings was the issue. I'll award points to both Syed & Perarduaadastra.

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I have a SonicWALL TZ 215. Default setup out of the box using the wizard with DHCP server enabled. If I assign a static IP address to a PC/server it doesn't connect to the Internet. If I change the NIC to DHCP it connects immediately.<br />
<br />
Is there any setting on the SonicWALL to allow only DHCP clients to connect to the WAN?<br />
<br />
On a TZ205 it works for both static &amp;&nbsp;DHCP clients.
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I have a SonicWALL TZ 215. Default setup out of the box using the wizard with DHCP server enabled. If I assign a static IP address to a PC/server it doesn't connect to the Internet. If I change the NIC to DHCP it connects immediately.

Is there any setting on the SonicWALL to allow only DHCP clients to connect to the WAN?

On a TZ205 it works for both static & DHCP clients.

Clients connected via SonicWALL only have Internet access when DHCP is enabled

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.