No network access is possible access is blocked by Firewall or antivirus

By | 10.12.2018



No network access is possible access is blocked by Firewall or antivirus

If the Internet does not work and no way to call a specialist urgently, you can try to adjust the settings yourself using our article.

Tip: before you look for methods of problem solving in network settings and router, check the status of your account with your ISP or loose network cable, approximately half of the cases this solves the problem.

The firewall or antivirus?

Sometimes, Internet access can block private protection agents system as a firewall or antivirus. To determine the prohibition of firewall in Windows 8 is quite simple – disable it in system settings and test connection, if the network appears – the problem is discovered.

Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

If the ban comes from anti-virus you need to disable directly the program or terminate the corresponding process via the task Manager.

Firewall configuration in Windows

The main function of firewall – checking of the data coming from the Internet and block those that cause fear. There are two modes of «white» and «black» list. White – block all except what is allowed black to allow all but the prohibited. Even after a full firewall configuration is the need to set permissions for new applications.

To find the firewall:

  • go to control Panel and use the search;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

  • in the opened window you can change the security settings for private and public networks;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

If you have already installed antivirus and disable the firewall as shown in this picture.

Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

Blocking outbound connections

The firewall and antivirus sometimes may completely block all outgoing connections.

To firewall to block outbound connections in the white mode of the filter:

  • go to «advanced options» of the firewall;
  • to open the window «Properties»;
  • to put the «outbound connections» to «block» in the private and public profile.

Rules for applications

There is a special list of programs that can exchange data with the Internet and if you need locks, you just need to configure permissions to it in the list. In addition, you can configure notifications so that if it blocks a new app, you had the choice to leave things as they are and allow access to this program.

For example, you can close the Internet access to Skype or Google chrome, or Vice versa, write access only for a couple specific work programmes.

Video: Network without Internet access

Service rules

To configure access services:

  1. go to advanced firewall settings;
  2. on the left, select inbound or outbound rules;
  3. on the right choose «Create rule»;
  4. in the list, select «Custom»;
  5. enter the service name or select it from the list.

Newer versions of Windows, starting with Vista, you can select a service from the list without typing the name of the service manually. If there is no access to a computer on the network, windows xp or windows server, you need to configure the service access policy, a detailed description can be found in the reference system.

Activate the reserved rule

To activate the reserved rule, you need to repeat steps 1-3 from the previous section, then:

  • select «Predefined»;
  • mark the desired resolution, for example for «Remote assistance»;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

  • select the desired rule from the list.
  • to specify the action for the specified conditions – allow the connection, allow connection if it is secure or block.

Allow VPN connection

For setting special permissions a VPN connection, you need to re repeat steps 1-3, then:

  • select «port»;
  • specify the Protocol TCP or UDP;
  • select apply this rule to all or specific ports;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

  • mark the desired item: allow the connection, allow connection if it is secure block the connection;
  • select the profiles for which to apply the rule to domain, private or public;
  • give the name ready to rule.

Antivirus settings

If you encounter problems, one of the best options is to visit the website of the antivirus program or contact the support team of the product, where you will indicate the correct settings of the program.

Antivirus should not block work programs – like Google chrome or Skype, but have to check on them during operation.

Safe antivirus settings should include:

  • web scan;
  • check files downloaded from the Internet;
  • blocking dangerous sites and disconnects the suspicious connections;
  • script scanning browser;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

  • warning of dangerous downloads and suspicious sites.

Update

Updating antivirus must be current or new releases, or monthly automatically.

There is no network access in Windows 7

If you see «Unidentified network», but all settings are right, please first contact the provider – it might be an internal error.

After you reinstall Windows Internet settings are usually returned to the original, so you need to set them again:

  • create a new network connection, choose «Broadband»;
  • enter your user name and password and connection name and save;
  • go to the adapter settings;
  • select the correct network connection and open the Properties;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

  • in the list select the item «Internet Protocol version 4»;
  • click «Properties»;
  • select «Obtain an IP address automatically» or «Use the following IP address and enter the necessary data manually;
  • data to be stored.

The cause of the problem can be a Protocol error Windows to fix this, you need to reset the Protocol.

It’s pretty simple:

  • start a command prompt with administrator rights;
  • to enter and activate the command netsh int ip reset resetlog.txt;
  • to restart the laptop.

The problem is in the router or in the laptop?

When having a problem connecting via WiFi, you need to determine what the source of the problem. It can be a laptop, router or ISP. If all devices connect to the router and work fine with the Internet in the laptop, if on the contrary, connect the network cable to the laptop and the Internet will work, you need to engage your router settings. When all else fails, contact the tech support of your provider.

Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

The reason the laptop

If the problem is in the laptop, but all of the above settings are fine, troubleshoot the system for viruses and devices. Possible problem with the network driver or even disruption of the network card connector.

May not be the same as the password of WiFi points, for example, due to incorrect layout or CapsLock.

The reason is Wi-Fi router

The router with incorrect settings can give WiFi without network access. About how to configure a router – read on.

One of the reasons for the communication network may be a network protection Wi-Fi from unauthorized access block MAC address. Find out how to fix this problem on the website of the router manufacturer, or find in the settings a list of allowed or denied addresses and dobavitelj address of your laptop.

View the MAC address of your laptop, you can try typing Ipconfig / all at a command prompt.

Also, on the router there is a setting speed limits for each customer, so you can allow the speed to the maximum, and to limit it to couples kbsec.

Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

Problems with speed of the Internet can be a distress signal from the router – you may not have removed the factory film, he covered or is overheating for other reasons. If you do not provide the device adequate ventilation, it will live it’s long and extremely inefficient.

Check the Internet connection without a router

If the problem you suspect it is the router, to verify need to connect the network cable to the laptop or computer. If the Internet is not earned automatically create a new cable connection, enter the username and password provided by the ISP. You may need to enter additional configuration of protocols in the adapter properties.

Configuring the Internet connection

To verify the IPv4 configuration of the computer declared by the provider, do the following:

  • log in network Management and sharing;
  • then tab Change adapter settings;
  • in the context menu of a connection, open Condition;
  • there click;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

  • check the address and gateway IPv4, they should match those provided by the provider during registration.

Configuring the connection through a router occurs through a web interface. Complete to the router sometimes there is a disc with settings, but you can do without it. For initial setup it is best to connect the router directly to the laptop and then the Internet cable, the electrical connection is done last.

Next, follow the instructions:

  1. go to the web interface. To do this, open a browser and enter the IP address that is in the product documentation or on a sticker directly on the case.

    It can be:

    • 192.168.0.1
    • 192.168.1.1
    • 192.168.2.1
  2. enter the login name and password to login, they are also mentioned in the documentation. This is usually admin-admin;
  3. menu item Wireless find SSID and enter the name of your future network;

    Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

  4. further, in the Security section, the same menu, create a network password, and Encryption select the most reliable WPA2-PSK;
  5. in the WAN connection section, choose the one that provides you with the provider:
    • If it is a PPPoE connection, you need to enter the username and password of the network, the need to fill points the IP address and mask for the network check with the service provider;

      Нет доступа к сети возможно доступ блокирует Брандмауэр или антивирус

    • With dynamic IP there is no configuration needed;
    • Static IP requires entering the IP address that will not be changed;
    • A PPTP connection requires a login, password, subnet mask and gateway IP.
  6. do not forget to save settings after each item.

If you don’t have time to wait for a technician, no desire to spend money, you feel confident PC user, using different instructions and recommendations, you can try to customize the Internet connection. Most likely, it will take two to three times more time and energy than the address to the master, but will give useful experience in the future.




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