Asus DSL-N55U User Manual

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3. I have registered a domain name before and it has been
working well until my friends told me that they could not
access my domain name.
Check the following:
1. The internet is working well.
2. The DNS server is working well.
3. The last time you updated the
domain name.
If there are still problems in accessing your domain name,
contact the service center.
4. Can I register two domain names to separately access my
http and ftp servers?
No, you cannot. You can only register one domain name for one
router. Use port mapping to implement security in the network.
5. After restarting the router, why is it that I see different WAN
IPs in MS DOS and in the router configuration page?
This is normal. The interval time between the ISP DNS server
and ASUS DDNS results in different WAN IPs in MS DOS and in
the router configuration page. Different ISPs may have different
interval time for IP updating.
6. Is the ASUS DDNS service free, or is it just a trial version?
The ASUS DDNS service is a free and embedded service in
some ASUS routers. Check your ASUS router if it supports the
ASUS DDNS service.

Asus DSL-N55U Specifications

General

Rack mounting	-
Frequency band	2.4 & 5 GHz
Frequency range	2.4 - 5 GHz
xDSL connection	Yes
USB ports quantity	2
Maximum data transfer rate	54 Mbit/s
WLAN data transfer rates supported	1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54, 600 Mbit/s
Antennas quantity	3
Antenna gain level (max)	2 dBi
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	4
Certification	CE, C-Tick, IDA, PCT, Wi-Fi
Security algorithms	128-bit WEP, 64-bit WEP, WPA-PSK, WPA2-PSK, WPS
Minimum RAM	8 MB
LED indicators	LAN, Power, WLAN
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	-10 - 55 °C
Operating relative humidity (H-H)	5 - 95 %
Networking standards	IEEE 802.11a, IEEE 802.11b, IEEE 802.11e, IEEE 802.11g, IEEE 802.11i, IEEE 802.11n, IEEE 802.3, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Wi-Fi band	Dual-band (2.4 GHz / 5 GHz)
Wi-Fi standards	802.11a, 802.11b, 802.11g
Top Wi-Fi standard	Wi-Fi 4 (802.11n)
WLAN data transfer rate (max)	600 Mbit/s
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (typical)	30 W

Weight and Dimensions

Depth	148.8 mm
Width	207 mm
Height	35.5 mm
Weight	400 g