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Please read the entire text below carefully before proceeding.

This process is the same as the DLink DIR-300 firmware, BUT you have a DIR-300 NRU so there is one very important rule.

IT IS FORBIDDEN install firmware for DIR-300NRU hardware versions B1, B2 and B3 in the router DIR-300NRU, which has a hardware revision of B5. This will lead to a complete failure of your device. After that, it will be possible to restore the router only for money by contacting a specialized service center.

Before updating the firmware, be sure to find out the hardware revision (H / W) of your router. To do this, look at the glued label, which is located at the bottom of the router. This sticker has an inscription that begins with "H/W Ver.:". The letter and number following it indicates the hardware revision.

Once you have determined the revision of your DIR-300NRU download the firmware yourself, according to the revision: If you have B1, B2, B3, then download this firmware - dir300b_v2.06_b9fe.bin If B5, then this firmware is needed - DIR_300NRUB5-1.2.94-20110414.fwz

The firmware update process implies that your DIR-300NRU already configured and working, or at least you have access to it through the web interface.

In the browser, enter the address of your router in the address bar. As a rule, this address is your gateway, you can check this by running the command line (START->All Programs->Accessories->Command Prompt) and entering the "ipconfig" command in it. You will see the inscription " Main gate. . . . . . . . . : 192.168.100.1", in this case, in the browser you need to enter 192.168.100.1

Enter your username and password from the router, go to the Maintenance –> Firmware update tab. Check the version of the current firmware, you may already have the latest installed and there is no need to update.

For the firmware update itself in paragraph Firmware upgrade click on the "Browse..." button and select the firmware file previously downloaded to your computer, mark it and click on the Upload button.

IMPORTANT! For the next two minutes, do not turn off the power of the router and the computer and do not interrupt the firmware update process in any way.

During the flashing process, you will see the progress of the operation in the browser with a timer showing the remaining time. After the countdown timer indicates the completion of the update, log in to the router again through the browser. By entering the same menu item, you will make sure that firmware DIR-300 NRU updated successfully.

And so, in general, it was high time to do it.
Many have repeatedly encountered various problems with the D-link dir-300 router (may also be suitable for other models) of various modifications http://www.dlink.ru/ru/products/2/728.html, many have a number of misconceptions about its operation and configuration.
In fact, everything is solvable, and there is no reason not to buy such a cheap router.
But there is no particular setting on the Internet.
So in this topic I will state what I came up with myself or got to the bottom of by trial and error. Everything that I present here may not be entirely explainable and necessary - but the main thing is that the router works! Yes, I beat him!
Let's start.
1) To begin with, after the purchase, I strongly advise you to immediately update the firmware here ftp://ftp.dlink.ru/pub/Router/
Choose the desired router after; to the Firmware folder.
An update is needed, since there are some router failures - it breaks the connection after some time (about a few minutes), and it only helps to pull it out of the socket. There are also Wi-Fi glitches on it - range, shutdown.
2) In no case do I advise you to change the source address of the router 192.168.0.1, since various failures also occur and work with some devices is disrupted (in particular, I could not connect Smart-TV from Samsung for a long time).
3)Now let's move on to the main setup.
I will explain everything using the example of my D-link dir-300 NRU rev.B6 router with the updated firmware of this version rev.B5/B6 1.4.4. For others, I don't think it will make much of a difference.

Let's move on to advanced settings, specifically to the Network - LAN setting.

It should look like in the screenshot, in addition, I have static addresses for devices on the local home network. Everybody is here.
Next we go to the Network - WAN setting. Since my provider is Multinex, I will explain on it. On early firmware, the provider's local network and its own private virtual network were two different connections, now it's one. We do as in the screenshots.

We fill in the checkboxes, register the login and password (if necessary), LCP dips and intervals.
We have come to an important MTU parameter: you only need to change where the private virtual network with a password and login is. This parameter specifies the number of bytes in the packet - whatever that means.
MTU selection is carried out individually using a command for the command line.
There she is:
FOR /L %a IN (1300,10,1500) DO ping -f -l %a ya.ru >> ping.txt
I explain: (1300,10,1500) - from what to what value to check in increments of 10 - ten for accelerated selection, since then it will be necessary to change to a type of type (1**0,1,1**0) depending on previously received interval (in total, you will have to run the command twice).
For clarity, it is better to remove the parameter >> ping.txt
Instead of ya.ru, it's better to put youtube.com (without the correct MTU, the video is not loaded)
Below is an example in screenshots.

This is how the router statistics should look like ( NET I simply called it the connection to a private virtual network)

That's it - the basic setup is finished.
4) WiFi
There is not much to say here.
I recommend setting only the following parameters, but everything is very simple there.

5) IGMP (located in advanced settings) - it seems to be something related to multimedia.
I don't know why, but use the second version.

6) And the last thing you need to know is the DC ++ setting
Learn about DC here http://ru.wikipedia.org/wiki/DC++
Learn about our DC here
The problem arises from the need to simultaneously work with both local hubs and Internet hubs.
A) Preparing the router.
For each computer on the network that needs to configure a DC, we create 2 virtual servers (why 2 is not clear, but that's not the point)
For example, the local address of my computer is 192.168.0.3 - we will use port 10033 for it.
Based on the screenshots, we do:

Attention to the fact that a virtual server is being created for NET and for “speaker_ports” (connection to the provider's local network), but on my screenshots this is for two computers.
Finished with the router.
B) Setting up the program using FlylinkDC++ as an example
We will assume that you have already added hubs to your favorites (both local and Internet)

Now let's take a look at local hubs. For each of them, we will write your local ip in its properties in selected hubs. IP you can find out until you set up the program by entering something in the search, the hub should quarrel and give out your real ip . This is ip never changes.

Good afternoon! Today, Wi-Fi routers are present in most users. They help us organize joint and, most importantly, wireless access to the World Wide Web. But any device, sooner or later, may fail or simply start to work unstable. You can fix this situation by installing a new firmware. In this article, we'll cover installing new firmware on D-Link DIR-300 NRU Ver.: B6 (and other software versions).

	Ver.: B5, B6	http://ftp.dlink.ru/pub/Router/DIR-300_NRU/Firmware/B5_B6/
	Ver.: B1, B2, B3	http://ftp.dlink.ru/pub/Router/DIR-300_NRU/Firmware/B1_B2_B3/
	Version: B7	http://ftp.dlink.ru/pub/Router/DIR-300_NRU/Firmware/B7/

Firmware D-Link DIR-300 NRU Ver.: B6

Before proceeding with the description of the process of updating the router, I ask you to clarify the software version of your equipment. Turn the device over, the sticker will indicate the model and version. See the picture below (Ver.:B5). After that, you can download the desired file.

With the version decided, you can start uploading the update.

1. Connect the DIR-300 with an Ethernet cable to your computer's network card. At the same time, on the router, the cable must be connected to any LAN connector (usually connected to the first one).
2. Next, open a browser (the manufacturer recommends using FireFox or Internet Explorer) and type in the address bar: 192.168.0.1 and press Enter.
3. An authorization page will open, here you need to enter your login and password to enter the device web interface. Default username/password is admin/admin.
4. Next, let's go to the section MAINTENANCE subsection Firmware update, press the button "Review" and in the window that opens, select our new firmware file, click "Open".
5. Now, to download the new firmware to the router, you need to press the button Apply. For the next 2-3 minutes, do not turn off the router or PC (until the update is completed).
6. After completing the update procedure, you need to restart the DIR-300. For this we choose MAINTENANCE -> Save and Restore and wait for the device to restart. By the way, all network connection settings, as well as wireless network settings, will have to be done again.

Who is not interested in reading the background, read the text after the quote

Last night, I tried to break all the tips to change my router back to the factory firmware (I once changed it to beeline), I ran into difficulties. First of all, I tried stupidly to update through the menu, indicating the factory firmware version 1.3.3, the update did not happen, that is, the tsatus went on that the update then even wrote that it was successful, but the standard beeline menu comes out (the address of the router on the beeline firmware is 192.168.1.1). then following the advice (of course the router is connected to the computer) I set up a network connection on the computer ip 192.168.0.10 mask 255.255.255.0, turn off the power of the router, hold down the reset, turn it on, wait 15 seconds (tried 20 and 25) trying to constantly go to the router at the address in line 192.168 .0.1 (and 192.168.1.1 too) tried both opera and google chrome and IE in general did everything as they said in the article here I’ll immediately say the router did not go into the firmware replacement mode, so to speak "emergence room" here is the copypas of the article but it is for more early assemblies there is no special difference in principle

So let's go:
1. If the router does not show any signs of life, or only the orange "power" diode is on, then first of all we remove all the cords from the router, including the power supply.
2. Download from
Attention! Register to see hidden text.
firmware, .bin file from the DIR-300NRU / FIRMWARE / B1_B2_B3 folder strictly for our router and save, for example, directly to drive C
3. We go to the settings of the network card and in the properties of the TCP / IPv4 protocol we prescribe the IP address 192.168.0.10 mask 255.255.255.0
4. Next, we connect the network card of our computer with a wire to one of the LAN ports of the router, let it be LAN1.
(To return the factory firmware DIR-100, you need to connect the computer's network card to the WAN port of the router (internet). Specify the location of the previously downloaded firmware and follow the link fla.)
for dir-100
5. In the off state, hold down the RESET button (with a match or other blunt object) and holding it, connect the power to the router
6. Without releasing, hold down the RESET button (20 seconds), wait until the emergency recovery mode of the router is loaded.
7. In the Mozilla or Opera browser (not IE only), type the address 192.168.0.1 and lower the RESET button.
8. Specify where the firmware is located (where we downloaded it) and click Upload firmware now.
Then we wait until the update is completed
9. If everything is done correctly, then after completion we will see the authorization window of our D-Link /
Login and password will return to default admin/empty
After such simple manipulations, you can restore the D-Link factory firmware after a failure, unsuccessful firmware, or after third-party firmware.

I repeat this article did NOT HELP me
in the end everything ingenious is simple

It is necessary to select our assembly from the dlink repository http://ftp.dlink.ru/pub/Router/DIR-300_NRU/Firmware/ in our case "B5" (you can find out on the sticker on the bottom of the router) ONLY HER if B3 is flashed then hike the service is guaranteed in the same place on the storage you can find other useful information, such as instructions for different versions of the software http://ftp.dlink.ru/pub/Router/DIR-300_NRU/.
LOOKING FOR SOFTWARE with .fwz extension I chose (DIR_300NRUB5-1.2.94-20110414.fwz)
then entering the standard beeline menu of the router at 192.168.1.1 entering the advanced settings, then the system, software update, select this downloaded file, click update updates longer, but no more than 4 minutes and as a result, the connection is broken and more at 192.168.1.1 the router does not appears, go to the address 192.168.0.1 and get into the menu of the router that was from the store, the default login and password (login admin, password admin) then update where we want and how we want, I had a need to get away from the Beeline firmware due to a change in provider on the TTK (I left the goodline on it with the beeline firmware worked well) previously connected the beeline and the factory router from the store was sewn to the beeline since the IP TV set-top boxes to the TV behaved inadequately after flashing everything became stable.

The Dlink dir-300 wireless router is a kind of dinosaur among routers of its class, suffice it to say that after the first Dlink dir-300 model became outdated, various analogues of Dlink dir-300 B1, B2, B3, B5, B6, B7 began to appear, which are superior in terms of speed and functionality of its prototype. But, in order to use additional functionality without interruption, I recommend updating your Dlink to the latest firmware, this is what this article is devoted to.

The first step is to set up a network on a computer / laptop on automatic acquisition of IP address and DNS server

Be sure to find out the hardware revision (H/W) of your router before updating the firmware. To do this, look at the glued label, which is located at the bottom of the router. This sticker has an inscription that begins with "H/W Ver.:"., The letter and number following it indicates the hardware revision, also pay attention to the firmware version “F/W Ver.:”

After you have determined the revision of your DIR-300 NRU and its version, download the latest firmware, according to the revision
Important!!! DO NOT install firmware for DIR-300 NRU hardware revisions B1, B2 and B3 in a DIR-300 NRU router with hardware revision B5, B6 and vice versa. This will lead to a complete failure of your device. After that, it will be possible to restore the router only for money by contacting a specialized service center.
If you have Dlink dir-300 NRU B1/ B2/ B3 then download this firmware from here .
If Dlink dir-300 NRU B5/ B6/ B7 then you need to download the firmware here from here .
If you have Dlink dir-300A/B, download firmware from here.
In this article, for example, I will update the Dlink dir-300 NRU firmware (hardware revision B5), but the update process for all Dlink routers is similar, so it may also be suitable for updating the Dlink dir-300 NRU B1, B2, B3, B6, B7.

So let's start, in the browser (Internet Explorer or Mozilla Firefox is recommended.) enter the address of your router in the address bar, the default is 192.168.0.1 (login admin, password admin)

Then, for security purposes, Dlink will offer to change the password, enter and click "Save".

This will open the web interface of the router.

In order to start the update, you need to go along the path "System - Software Update".

Then press "Review" specify the path to the downloaded update and click "Update".