WAN Interface
To view WAN settings:
- Network
- WAN
you need to follow these menus. There are 2 network interfaces here: WAN_5G and WAN_WIRED. Connection details: Uptime, MAC-Address, RX/TX, IPv4 can be examined on this page. You can try reconnecting with the Connect button. The settings of the WAN network can be configured by clicking the Edit button. After making your settings, save them with the Save and Apply buttons.

WAN_5G Interface
For details, please check the Cellular Network section.
WAN_WIRED Interface
The operating mode of the WAN_WIRED interface can be selected from the Protocol section. By default, it is set as DHCP client.
DHCP Client Mode
The IP address of the RLTK541 will be assigned by the router it is connected to.

- Hostname to send when requesting DHCP: The hostname that RLTK541 will send when requesting DHCP.
Static Address Mode
The IP address of the RLTK541 will be set statically.

- IPv4 address: The static IP address of the RLTK541.
- IPv4 netmask: The network mask of the RLTK541.
- IPv4 gateway: The gateway IP address to which the RLTK541 will be connected.
- IPv4 broadcast: The broadcast address that the RLTK541 will use.
- Use custom DNS servers: The DNS servers that the RLTK541 will use.
PPPoE
The username and password provided by the operator must be entered. This setting can be accessed from the General Setup tab.

- PAP/CHAP username: Username.
- PAP/CHAP password: Password.
The Advanced Settings tab contains DNS and LCP settings.

- Use DNS servers advertised by peer: If not selected, the advertised DNS server addresses are ignored.
- Use custom DNS servers: Custom DNS servers are added here.
- LCP echo failure threshold: After the specified LCP echo failure, the peer is assumed to be down. It takes a value between 0 - 20. A value of 0 ignores failures.
- LCP echo interval: The interval for sending LCP echoes, measured in seconds. It is effective when the LCP echo failure threshold is triggered (1 - 20).
- Override MTU: Maximum Transmission Unit, the length of the payload. It takes a value between 600 - 1500.
WWAN0 Interface
If an AP is connected via the WWAN interface, the WWAN0 interface will appear in the WAN menu. The operating mode of the WWAN0 interface can be selected from the Protocol section. By default, it is set as DHCP client.

DHCP Client Mode
The IP address of the RLTK541 will be assigned by the router it is connected to.

- Hostname to send when requesting DHCP: The hostname that RLTK541 will send when requesting DHCP.
Static Address Mode
The IP address of the RLTK541 will be set statically.

- IPv4 address: The static IP address of the RLTK541.
- IPv4 netmask: The network mask of the RLTK541.
- IPv4 gateway: The gateway IP address to which the RLTK541 will be connected.
- IPv4 broadcast: The broadcast address that the RLTK541 will use.
- Use custom DNS servers: The DNS servers that the RLTK541 will use.