Tenda AC19 User Manual

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12.3 WAN settings
In the WAN Parameters module, you can check and modify MTU value, WAN speed, duplex mode,
MAC address, service name and server name.
12.3.1 Change MTU value
MTU (Maximum Transmission Unit) is the largest data packet transmitted by a network device.
When the connection type is PPPoE, the default MTU value is 1480. When the connection type is
dynamic IP address or static IP address, the default MTU value is 1500. Do not change the value
unless necessary. If you need to, please refer to the following instructions.
To access the configuration page, log in to the web UI of the router, and choose System Settings >
WAN Settings.
Generally, the default value is recommended. Try to change the MTU value when:
− You cannot access some specific websites or encrypted websites (such as E-banking
or Paypal websites).
− You cannot receive and send Emails or access a FTP or POP server.
You can try reducing the value of MTU gradually from 1500 until the problem is resolved (The
recommended range is 1400 to 1500).
MTU application description
MTU
Application
1500
It is commonly used for non-ADSL and non-VPN dial-up connections.
1492, 1480
It is used for ADSL dial-up connections.
1472
It is the maximum value for the ping command. A packet with a larger size is
fragmented.

Tenda AC19 Specifications

General

DSL WAN	No
Ethernet WAN	Yes
Wi-Fi band	Dual-band (2.4 GHz / 5 GHz)
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Top Wi-Fi standard	Wi-Fi 4 (802.11n)
WLAN data transfer rate (max)	- Mbit/s
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.3, IEEE 802.3ab, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Ethernet LAN (RJ-45) ports	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	1
Security algorithms	WPA-PSK, WPA2, WPS
Product type	Tabletop router
Product color	Black
LED indicators	LAN, Power, System, USB, WPS
Antenna gain level (max)	6 dBi
Certification	CE, FCC, RoHS
Output current	2 A
Output voltage	12 V
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	50 - 60 Hz
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	10 - 90 %
Cables included	LAN (RJ-45)
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	238.9 mm
Width	144.3 mm
Height	403 mm