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Appendix A – Troubleshooting
D-Link DSL-2542B User Manual
56
•
Please ensure that the settings in the Web-based configuration manager, e.g. ISP username and password, are the same as the settings
that have been provided by your ISP.
4.
Why can’t I get an Internet connection?
For ADSL ISP users, please contact your ISP to make sure the service has been enabled/connected by your ISP and that your ISP username and
password are correct.
5.
What can I do if my Router can’t be detected by running the installation CD?
•
Ensure the Router is powered on.
•
Check that all the cables are firmly connected at both ends and all LEDs work correctly.
•
Ensure only one network interface card on your PC is activated.
•
Click on
Start
>
Control Panel
>
Security Center
to disable the firewall.
Note:
There is a potential security issue if the firewall is disabled on your PC. Please remember to turn it back on once you have finished the whole
installation procedure. This will enable you to be able to surf the Internet without any problem.
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Appendix B - Networking Basics
D-Link DSL-2542B User Manual
57
Networking Basics
Check Your IP Address
After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP server (i.e. wireless
router) automatically. To verify your IP address, please follow the steps below.
Click on
Start
>
Run
. In the run box type
cmd
and click on the
OK
.
At the prompt, type
ipconfig
and press
Enter
.
This will display the IP address, subnet mask, and the default
gateway of your adapter.
If the address is 0.0.0.0, check your adapter installation, security
settings, and the settings on your router. Some firewall software
programs may block a DHCP request on newly installed adapters.
If you are connecting to a wireless network at a hotspot (e.g. hotel,
coffee shop, airport), please contact an employee or administrator
to verify their wireless network settings.
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Appendix B - Networking Basics
D-Link DSL-2542B User Manual
58
Statically Assign An IP Address
If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below:
Step 1
Windows
®
XP - Click on
Start
>
Control Panel
>
Network Connections
.
Windows
®
2000 - From the desktop, right-click on the
My Network Places
>
Properties
.
Step 2
Right-click on the
Local Area Connection
which represents your D-Link network adapter and select
Properties
.
Step 3
Highlight
Internet Protocol (TCP/IP)
and click on the
Properties
.
Step 4
Click on the
Use the following IP address
and enter an IP address that is on the same subnet as
your network or the LAN IP address on your router.
Example: If the router’s LAN IP address is
192.168.1.1, make your IP address 192.168.1.X where X
is a number between 2 and 99. Make sure that the number you choose is not in use on the network.
Set Default Gateway the same as the LAN IP address of your router (192.168.1.1).
Set Primary DNS the same as the LAN IP address of your router (192.168.1.1). The Secondary
DNS is not needed or you may enter a DNS server from your ISP.
Step 5
Click on the
OK
twice to save your settings.
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Appendix C – Technical Specifications
D-Link DSL-2542B User Manual
59
Technical Specifications
ADSL Standards
•
ANSI T1.413 Issue 2
•
ITU G.992.1 (G.dmt) AnnexA
•
ITU G.992.2 (G.lite) Annex A
•
ITU G.994.1 (G.hs)
•
ITU G.992.5 Annex A
ADSL2 Standards
•
ITU G.992.3 (G.dmt.bis) Annex A
•
ITU G.992.4 (G.lite.bis) Annex A
Protocols
•
IEEE 802.1d Spanning
Tree
•
TCP/UDP
•
ARP
•
RARP
•
ICMP
•
RFC1058 RIP v1
•
RFC1213 SNMP v1 & v2c
•
RFC1334 PAP
•
RFC1389 RIP v2
•
RFC1577 Classical IP over
ATM
•
RFC1483/2684
Multiprotocol
Encapsulation over ATM
Adaptation Layer 5 (AAL5)
•
RFC1661 Point to Point
Protocol
•
RFC1994 CHAP
•
RFC2131 DHCP Client /
DHCP Server
•
RFC2364 PPP over ATM
•
RFC2516 PPP over
Ethernet
Data Transfer Rate
•
G.dmt full rate downstream: up to 8 Mbps / upstream: up to 1
Mbps
•
G.lite: ADSL downstream up to 1.5 Mbps / upstream up to 512
Kbps
•
G.dmt.bis full rate downstream: up to 12 Mbps / upstream: up
to 12 Mbps
•
ADSL full rate downstream: up to 24 Mbps / upstream: up to 1
Mbps
Media Interface
•
ADSL interface: RJ-11 connector for connection to 24/26
AWG twisted pair telephone line
•
LAN interface: four RJ-45 ports for 10/100BASE-T Ethernet
connection
19216811.live