Knowing the password to access the router is essential if we need to make any changes, optimize the configuration or solve any problem.In this article we are going to explain what the default key is in the main routers of operators such as Movistar, Vodafone, Orange or Jazztel.We will also talk about how and why you should change it to avoid security issues.We can find that there are some passwords that are usually common and appear by default in the main routers that we find in the market.This may be interesting for users who buy a new device and need to configure it and want to do it quickly.Although sometimes it comes on a sticker attached to the router, sometimes this is not the case and we may have more problems knowing which one it is.Therefore, this list that we are going to show are some of the options that we should try first to access our router.If you are using a generic key, it will most likely be in this list.Later we will explain what password the routers of the main operators use:The most frequent is that one of these that we have shown is the key to be able to enter your router.Everything will depend on the exact model and also on the operator.In some cases, the telephone companies themselves send routers with different passwords, as we will see.First of all, we are going to talk about the routers that Movistar supplies.It should be noted that this operator has traditionally provided devices that have the default password and user admin/admin and 1234/1234.They are two of the main ones, as we put on the list.But of course, security is a fundamental factor and over time they have been avoiding putting passwords that are so easy to find out.In reality, this type of password is as if they did not have any, since anyone with the necessary knowledge and knowing what model of router there is, could access the device.Therefore, for a few years the new fiber optic routers, such as the HGU model, have a unique password.This allows each user to have a different key to access their device and it cannot be easily guessed.If you have tried the generic passwords and they don't work for you, you should look at the bottom of the router.There should be a sticker with the password to access the computer.In this way you will be able to enter the default gateway and modify anything, including the access code itself.Both Jazztel and Orange usually offer Livebox fiber optic routers.These types of devices do not usually use unique passwords, as was the case with Movistar.Normally, we can access them with the admin/admin combination.In the case of Jazztel, the ZTE routers that users sometimes have have a password and key with the name of the company: Jazztel/Jazztel.It is equally easy to remember and, also, to find out by a third party.In some Jazztel devices we can access the complete configuration menu through Jazztel/Jazztel and also the user menu, where we will find limited functions, with the user/user combination.Routers from these companies do not usually have unique passwords.It will depend on the model and the normal thing is that it is one of the combinations of the list that we put previously, like admin/admin or 1234/1234.These generic keys will allow us to access the menu and be able to configure the device.However, some specific models that Vodafone customers have need to enter the Vodafone/Vodafone combination to be able to enter.In this case, it would be something different from the operator, but we would also not be dealing with unique passwords for each user, since it is always the same.Both operators offer routers to users with passwords that are generic, as well as the username that we have to enter to enter the configuration.Once again, if we want to modify something about our fiber optic router we will have to go to the list that we have shown.Of course, there are some models where it is different.For example, the ZTE F680 router must be put masmovil/masmovil to be able to access.If we have a different model, it is normal that they are the typical combinations that we have seen previously.On Yoigo's part, generally most of the time we can access through admin/admin.Everything will depend on the model, since you can use a different one but always from the combinations that we have seen.Many users change the Wi-Fi password once they contract the Internet.It is something basic and that many take into account as an essential measure.It's fine to do this, but it's equally important to also change access to the router itself and not just the wireless network.Only then will you be properly protected and avoid problems.If an intruder had access to our router and we are using a generic password, they could take full control.This could not only affect the performance of the connection, but could even steal personal information or otherwise affect the security of connected devices.It could also have access to the password of the wireless network, even if it is very good and you have changed it.In addition, it could configure anything on the device and cause it to malfunction, such as deactivating the Wi-Fi network, changing the channel to which we connect, disabling one of the two bands, ejecting connected devices, etc.Therefore, to avoid these bad practices and minimize the probability of experiencing a security problem, our advice is to always change the password to access the router.We must use a key that is strong and complex, in the same way that we would do for Wi-Fi.That password must be unique, contain letters (both uppercase and lowercase), numbers, and other special symbols.This, together with a good length, will make it very difficult to be found out by a possible attacker.You should never use words or figures that can relate to you, such as your name and date of birth.This could make it easier for a potential intruder to break into the network.As you have seen, the generic ones that usually come with the router are very simple and can be easily found.It is always advisable to put a different one and also do it correctly.If we see that we have problems related to passwords, instead of changing them, such as forgetting them, we can always choose to reset it to its factory state.This not only restores the connections and erases all the configuration that we have applied, but the password will again be the one that the device had from the factory.It should be noted that it would be advisable to change it again once it has been reset.The most normal thing is that the router has a small button, which we will have to hold down until the device lights blink.Keeping the protection on the router means that you will also keep the security of other devices that you have connected to the network.If one falls, we can say that it can cause a domino effect and affect all the others.For this reason, you should always protect the maximum security of any device you connect to the network, be it a computer, mobile or any other device.So how can we put another password to our router?It is a simple process, although it may vary depending on the model we have.Logically, for this we will have to know the user and password to enter the router, depending on the model we have and as we have explained.Once we know that data, we will only have to access the device.Typically this is through the default gateway 192.168.1.1 in the browser.If it is not that address, we can find it out in Windows easily.To do this, go to Start, enter the Command Prompt or Terminal and execute the ipconfig command.This will show us a series of information, where we will also see the default gateway.Sometimes some models use a different one, such as 192.168.0.1.We can even configure that gateway if we wanted and thus use any other.This can change depending on the model, but generally we have to enter the menu and there we will see an option to Change router password.For example, in the image below we can see in the case of the HGU router, which is the one that is usually installed with Movistar's fiber optics.If it does not appear visibly at first, we will have to enter Settings, Configuration, Security or similar, always related to changing passwords (both Wi-Fi and router) and device protection.It may also be in Advanced Settings, depending on the model.Some models will also allow you to enter from the mobile application.This way you will be able to access the configuration quickly and modify at least some basic parameters.However, this will depend on the model and in some cases the functions from the mobile are very limited and we really cannot do much.In short, these are the main default passwords that come in the routers of the main telephone operators.You will find these generic keys whether you have an ADSL router or a fiber optic router.It is important to always change the one that comes from the factory and put a more secure one, as we have explained.In this way you will maximize security and ensure that your network is completely protected so as not to have problems.To generate a good password, it is not necessary for us to invent it ourselves.We can use some tools that can help us to have a good password depending on the parameters that we indicate.For this we will use PasswordGenerator.It is a very simple application and does not require installation, so it will only be download and run.This will open a window where we will have all the information.The interface is simple, and it gives us several options that we can choose the ones we want and we choose the length of it.It should be remembered that the longer, the more variety of characters it will have, therefore, it will be safer.Once we have the correct parameters, click on Create, and this will take care of providing us with a password.This, obviously, we can not only use for the router, which is the purpose in this case, but we can use it for everything we want.But it is always advisable to use different passwords.Although PasswordGenerator is a free application and very easy to use, you will find many other similar ones.Some like RendPass or even some of the more popular key managers will also be useful.The important thing here is that, whichever you choose, it works correctly and ensures you a password that is difficult to guess.In the case of the router, we must think that it is the direct entrance of the internet to our devices.Therefore, it is recommended that the password be more secure if possible.As it is a code that we will not have to put very often, then that it is longer and more complex, it should not be a problem.You should always avoid weak passwords that are easy to memorize.For example, you should never use a word or digit that reminds you of something.Nor use the same password that you are using in another site, since if someone manages to enter that other place, what is known as a domino effect could occur and affect other platforms or devices, as would be the case with the router.Therefore, use unique passwords, invented by yourself or created through programs like the one we have shown.That will help you protect your connection and avoid problems.In short, as you have seen, routers generally have an access key that is predetermined.This means that it can be easily found out by anyone who knows the model of the device and does some searching on the Internet.It is something that can logically put your security at risk, since it could access the configuration and change any parameter.To avoid problems and ensure that the router is fully protected, what you should do is change the access password.You should always use a secure, strong password that is difficult to find out.For this, you can help yourself with a key generator that meets all the requirements, such as being unique, having letters (both uppercase and lowercase), numbers, and other special symbols.This way you will be able to protect the device as much as possible and keep possible intruders away who may enter your network and affect performance.