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 ( 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 ( 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 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.