Below are instructions on how to get your router IP address on Windows 7 OS.

MS Windows 7

On Windows 7 please go to 'Start' button and type in search box:

cmd

This will open a MSDOS command window, then type:

\yourpath>ipconfig

  • IP of your router could be found in a line after "Default Gateway"
  • IP of your computer could be found in a line after "IPv4 Address"
  • Subnet Mask could be found in a line after "Subnet mask"

One of the great advantages of Wi-Fi is that the network allows us to connect desktop computers, laptops, smartphones, tablets and other devices to the Internet wirelessly. Usually when we have a Wi-Fi router, perhaps with repeaters, all computers are equipped to use this platform hardware to be detected immediately, to connect to it or request permissions and passwords to enter.

However, this process may be interrupted, and some or all of the devices may not detect the existing Wi-Fi network, this is due to various factors related to problems with the modem, router or even with any otherequipment, such as phone or tablet.

In this tutorial we are going to talk about router related troubles.

Action 1. Check the connection via Ethernet

Try to connect to the router, if possible, through a network cable. If you can connect in this way then the problem is due to the WIFI transmission. If so, restart the device and modem. If you fail to  solve the problem in this way then check the transmission parameters of the device such as power transmission channels, frequency, DHCP, etc.

Action 2. Restart the device

When we noticed that the problem is in all or almost all connected computers and devices, one of the best options is to try to restart the router, because may be some 'bugs' on the WiFI  signal which can become weak and hard to detect by the apparatus.

In this case what we do is turn off the Wi-Fi router, then wait at least 20 seconds, then restarting the device. Overall, almost all commercial routers have a on/off button, however, if not we can directly disconnect the power cable from the unit.

Action 3. Check the WiFi transmission channel

As we know, some routers use two types of ways to spread the signal, 2.4GHz and 5GHz. So we note that most devices has a wireless adapter that only works with 2.4 GHz, so it is advisable to check which channel is using the router.

This procedure is done through the configuration page of the router, which can be accessed by typing the IP Address (192.168.1.254) on your preferred web browser.

Action 4. Take off some interferences (as possible).

Check the distance to the router . Also check the obstacles between the router and PC. Depending on the type of router, the distances achieved may vary in any case and omnidirectional antennas scope approaches about 300 meters away unhindered. If you can, take off any objects tha can represent an interference to the signal.

Action 5. Check the network cable.

Check on the corresponding port, where the PC is connected, if LED is on or blinking. If not, try to change the network cable. If the cable works, try to access the router management software by typing the gateway address (192.168.1.254) and see if you can access. If not, try to change the physical port and check. These ports may be damaged and then have to change it.

Action 6. Check the IP Address range

Check the range of the router DHCP assignments and also check the status of operation of the router where the list of IP is assigned within your network. Verify that there are free IP addresses within the preset range, if not, expand the range and restart your router, the problem should be solved.

Action 7. Check firmware

Finally, if none of the tips presented in this article have solved your problems, we can try to check for firmware updates for your router. When a firmware is not updated can be a problem or many problems, including outages and malfunction. In this case, what we have to do is take note of the make and model of your router and access the page of the manufacturer.

For a D-Link Router model DIR-505 we can do the next:

Access the router configuration software typing the IP 192.168.1.254 and go to the 'Maintenance' tab, then at left bar to 'Firmware' button

There are two options from the  configuration software:

1) Download an update file from the configuration software by pressing the 'Check Now' button.

This button will redirect you to the right update page, if available.

2) Having previously downloaded to your computer and then look through the wizard provided for this purpose. Here we must have special care when choosing the file, since in many cases, if this is the wrong update file, we can have problems in future  or maybe damage it totally.

 

The option to filter MAC address (Media Access Controller) is used to control network access based on the MAC address of the network adapter. A MAC address is a unique identifier assigned by the network adapter manufacturer. This feature can be configured to allow or deny access to the network / Internet. This option is listed in several specialized sites as 'low security' because of  relatively easy to skip this filter for someone with basic knowledge of wireless networks, however, combined with other security protocols can help improve this aspect.

We will take as an example a router D-LINK DIR-505 model

Step 1

Login to the router: to access the router we have to know previously the IP Address, then typing this on the web browser, for this example we are going to use the typical 192.168.1.254

Step 2

Once we have logged in we must go to 'Advanced' tab.

Step 3

On the left bar we found the third button, MAC Address filter configuration, where we have three options at dropdown list, 'Turn MAC Filtering OFF', 'Turn MAC Filtering ON and ALLOW computer listed to access the network' and 'Turn MAC Filtering ON and DENY computer listed to access the network', depending on our requeriments, we have to select either ALLOW or DENY option

Step 4

Once we selected the type of filter we can chose the MAC Address from the dropdown list and click on the arrow near to list, or insert manually.

Step 5

Save the changes and close the connection to router management
But, how can I retrieve the MAC Address of my network adapter?

Linux

In a shell, type ifconfig. The MAC address is HWaddr.

Android

Go to Settings> Wi-Fi> Advanced Settings. There, the MAC address of your Android device will be shown.

Note: please, keep in mind that this is a 'low security' setting and must be reinforced with other settings to give a true protective shield to your network.

Concept of Dynamic DNS

A dynamic DNS service allows you to identify your PC with a domain name easy to remember, as yourname.YourDynamicDns.com instead of a strange type number 250.198.45.26  and be able to mount a server without complications regardless of whether or not we have a static IP.
An IP address is a set of 4 numbers from 0 to 255 separated by points, that identifies a computer on a network (a set of computers connected together). The same computer will be assigned an IP for each network to which it is connected.
Regardless of your Internet size it is evident from the above definition that all computer, by virtue of being connected to it, will have an IP for which it is known and referenced by other network devices. This IP must be different from another device's IPs of a local network that can assign itself, is given by the ISP.

So, why is useful a DDNS service?

The most common use of DDNS is remote access to IP, DVRs, NAS, routers, computers, tablets, cameras, smartphones and any device connected to Internet.

How can I Obtain a DDNS Service?

Some small applications called Automatic Update Client both with DDNS allow us to remotely access devices and files that are connected to the Internet and located in our home, office, etc. Some commercial routers has a module where you can set DDNS parameters, as in the case of D-Link routers, in fact,  the same company provides this service.

Who provides the DDNS service?

Many providers worldwide offer commercial or free Dynamic DNS service for this scenario. The automatic reconfiguration is generally implemented in the user's router or computer, which runs specific software to update the DDNS service. The communication between the user's equipment and the provider is not standardized, although a few standard web-based methods of updating have emerged over time.
Some companies like www.no-ip.com or www.dyndns.com provides free DDNS service. D-Link company offer this service only for their customers and the creation of a customer account is needed. This would be our first step to configure our router as a DDNS client.
Step 1: create an account on your preferred DDNS service provider, we choose D-Link (www.dlinkddns.com).

 

Step 2: Once created the user and password you have to add a host. Maybe your DDNS service provider allows you to create several host for free.

Step 3: Once the host is created you have configure your router with your host name, user and password. In D-Link Model DIR-505 typing in a web browser the IP 192.168.1.254 we can access the configuration software, then we can find this on the 'Maintenance' Tab, then 'Dynamic DNS' button

Step 4: Save the configuration and the router will reboot quickly, then, you have already your router configured as a Dynamic DNS host. If you want your PC routed as a server you have to configure this as a virtual server.