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Page 141 / 151 Scroll up to view Page 136 - 140
137
D-Link DIR-862L User Manual
Section 6 - Troubleshooting
You should start at 1472 and work your way down by 10 each time. Once you get a reply, go up by 2 until you get a fragmented
packet. Take that value and add 28 to the value to account for the various TCP/IP headers. For example, lets say that 1452 was the
proper value, the actual MTU size would be 1480, which is the optimum for the network we’re working with (1452+28=1480).
Once you find your MTU, you can now configure your router with the proper MTU size.
To change the MTU rate on your router follow the steps below:
• Open your browser, enter the IP address of your router (192.168.0.1) and click
OK
.
• Enter your username (admin) and password (blank by default). Click
OK
to enter the web configuration page
for the device.
• Click on
Setup
and then click
Manual Configure
.
• To change the MTU enter the number in the MTU field and click
Save Settings
to save your settings.
• Test your email. If changing the MTU does not resolve the problem, continue changing the MTU in increments
of ten.
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138
D-Link DIR-862L User Manual
Appendix A - Wireless Basics
D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless
connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard, the D-Link
wireless family of products will allow you to securely access the data you want, when and where you want it. You will be able
to enjoy the freedom that wireless networking delivers.
A wireless local area network (WLAN) is a cellular computer network that transmits and receives data with radio signals instead of
wires. Wireless LANs are used increasingly in both home and office environments, and public areas such as airports, coffee shops
and universities. Innovative ways to utilize WLAN technology are helping people to work and communicate more efficiently.
Increased mobility and the absence of cabling and other fixed infrastructure have proven to be beneficial for many users.
Wireless users can use the same applications they use on a wired network.
Wireless adapter cards used on laptop and desktop
systems support the same protocols as Ethernet adapter cards.
Under many circumstances, it may be desirable for mobile network devices to link to a conventional Ethernet LAN in order to
use servers, printers or an Internet connection supplied through the wired LAN.
A Wireless Router is a device used to provide
this link.
Wireless Basics
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139
D-Link DIR-862L User Manual
Appendix A - Wireless Basics
What is Wireless?
People use wireless or Wi-Fi technology as a way of connecting your computer to a network without using wires. Wi-Fi uses radio
frequency to connect wirelessly, so you have the freedom to connect computers anywhere in your home or office network.
Why D-Link Wireless
?
Overall, D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products.
D-Link delivers the performance you need at a price you can afford. D-Link has all the products you need to build your network.
How does wireless work?
Phones that connect wirelessly to a base station work like wireless does, using radio signals to transmit data from point A
to point B. But wireless technology has restrictions as to how you can access the network. You must be within the wireless
network range area to be able to connect your computer. There are two different types of wireless networks: Wireless Local
Area Network (WLAN), and Wireless Personal Area Network (WPAN).
Wireless Local Area Network (WLAN)
Every local area network needs a device called an Access Point (AP) connects computers to the network. The access point has
a small antenna attached to it, which allows it to transmit data back and forth over radio signals. With an indoor access point,
the signal can travel up to 300 feet. With an outdoor access point the signal can reach out up to 30 miles to serve places like
manufacturing plants, industrial locations, college and high school campuses, airports, golf courses, and many other outdoor
venues.
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140
D-Link DIR-862L User Manual
Appendix A - Wireless Basics
Wireless Personal Area Network (WPAN)
Range for Bluetooth (WPAN industry standard) is up to 30 feet away and eliminates the need for many cables.
Only WLAN has the speed and wireless operation range suitable for computers transmitting large amounts of data, but WPAN
doesn’t use nearly as much power which makes it ideal for personal devices, such as mobile phones, PDAs, headphones, laptops,
speakers, and other devices that operate on batteries.
Who uses wireless?
Customers and employees, students and teachers, family members; everyone uses wireless. It has become so popular in recent
years that almost everyone is using it. Whether it’s for home or office, D-Link has a wireless solution for it.
Home
• Kids won’t trip over cables
• Email, surf, chat, game, etc...
• The only way to connect with new devices such as phones and tablets
• Freedom to move from room to room
Small Office and Home Office
• Instant access for visitors with guest networks
• Stay on top of everything at home as you would at the office
• Trim purchasing and maintenance costs associated with cables
• 32 or even more connections so everyone can get online
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D-Link DIR-862L User Manual
Appendix A - Wireless Basics
Where is wireless used?
Wireless technology is expanding everywhere, not just at home or in the office. People like the freedom of mobility and it’s
becoming so popular that more and more public facilities now provide wireless access to attract people. The wireless connections
in public places are usually called “hotspots”.
Using a Wi-Fi enabled laptop, you can access a hotspot to connect to the Internet from remote locations like airports, hotels,
coffee shops, libraries, restaurants, and convention centers.
A wireless network is easy to setup, but if you’re installing one for the first time it could be quite a task not knowing where to
start. That’s why we’ve put together a few setup steps and tips to help you through the process of setting up a wireless network.
Tips
Here are a few things to keep in mind when you install a wireless network.
Centralize your router or Access Point
Make sure you place the router/access point in a centralized location within your network for the best performance. Try to
place the router/access point as high as possible in the room, so the signal gets dispersed throughout your home. If you have
a two-story home, you may need a repeater to boost the signal and extend the range.
Eliminate Interference
Place home appliances such as cordless telephones, microwaves, and televisions as far away as possible from the router/access
point. This will significantly reduce any interference that the appliances might cause since they operate on same frequency.

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