In this article you will find all the ways to troubleshoot internet connection and solve network problems, if not on the web, on a Windows PC 10, 7 and 8.
If the internet does not work, instead of trying to reload the site that does not open hoping that at a certain point the situation is solved by itself, it is worth investigating the reason and finding the right solution to troubleshoot internet connection.
So let’s see how to solve troubleshoot Internet connection in the case of non-connection through a series of simple ways and others less known but equally within everyone’s reach.
The troubleshoot internet connection methods listed below are valid both for connecting to the internet via a LAN cable, either in WiFi and with a USB key.
1) Preliminary checks
The first thing to do in this sense is to check that the cables they are connected correctly, that the router is on and does not signal anomalies (red lights or other) and that the reception of the WiFi signal is at least good.
While this may seem obvious, it is actually easy for the network cables to be disconnected or loose, both the computer and the router, or that Wi-Fi reception has inadvertently been turned off on laptops .
In Windows 10, go to Settings> Network and Internet> WiFi, check the available networks and press Connect to the name of the recognized WiFi network.
Also make sure that the physical Wi-Fi switch on your laptop is turned on. (Usually a light indicates when it is on.)
Make sure that the flight mode of Windows 10 is turned off (in Settings> Network and Internet> Flight Mode).
2) Check if the site is online
The second fundamental step, if you are trying in vain to access a particular website, is to check that the site is not offline and that the other sites are instead they work.
3) Generate the network status report in the last 48 hours
The wireless network report is a Windows tool really useful to understand if the WiFi network has had problems in the last 2 days, highlighting every possible problem.
This report can be easily read by anyone with experience or otherwise be transmitted and read to the customer support of the connection.
In the Start menu search box, type cmd, then right-click Command Prompt and select Run as administrator.
At the command prompt, type netsh wlan show wlan report.
The wlan-report-latest.html file can be opened in the web browser and saved in the C: \ ProgramData \ Microsoft \ Windows \ WlanReport folder.
4) PING command
One of the first things to try troubleshoot internet connection is to work properly is the ping command.
Open a command prompt window from the Start menu (as seen in step 2), write ping google.com or ping navigaweb.net and send to see if there is an answer.
This command sends different packets to the specified address.
The Web server responds to every package it receives; if there is no packet loss and the time of each packet serving is rather low, then the internet connection is working and the problem is at the browser level.
If instead there is a loss of packets (in other words, if the web server did not respond to one or more of the packets sent), this may indicate a network problem.
If the website takes too long to respond, the network works but has problems of slowness.
This last problem can be caused by the site itself (unlikely if the same problem occurs on multiple websites), from your Internet service provider, or from the router.
Still using the PING command, you can check if the gateway is reachable.
If it is not, if all the connections are affixed and if the router is not broken, then you need to contact the support of the network provider.
Run the command prompt as an administrator (as seen in step 2) and type the ipconfig command first.
Search for the IP address of the default gateway and write it down (for example: 192.168.1.1)
Still in the prompt, type ping and press Enter (for example ping 192.168.1.1) and press Enter.
The ping does not answer, call the call center.
5) Restart the wireless router and modem
This is the simplest method, but can sometimes be very effective for troubleshoot Internet connection.
The modem is the device that communicates with the Internet service provider, while the router shares the connection between all the computers and other network devices in the home.
In some cases, modems and routers are the same device.
Disconnect the power cable for the router and the modem cable from the power source (and if there is a battery, remove it).
Wait for at least 30 seconds before reconnecting the modem / router and switch it on.
If they were two different devices, first reconnect the modem, then when the lights stop blinking, reconnect the router.
After restarting the router, also make sure that there are flashing green lights.
If you see a steady light on the router, usually orange, it means there is a problem inside the network.
If the orange light appears on the modem, you can only call the network provider’s call center and point out the situation that depends on them.
Try also to reset the router to the factory settings.
To check if the problem is really with the router or not, you can connect the computer, via Ethernet cable, directly to the modem.
If the connection is now working properly, the router might be able to change or is badly configured.
6) Diagnosing the network on Windows 7, 8 and Windows 10
The automatic resolution of network problems in Windows 7 should not be underestimated because it shows with some clarity where the problem is.
Go to Start -> Control Panel -> Network and Internet -> Network and Sharing Center, click on “Change card settings”, press the right button on the active network card, whether it is a LAN or a WiFi network and click on “Run Diagnostics.”
The Windows tool will do an analysis of the network components and will attempt to automatically resolve any errors configuration on your computer
If the problem depends on your internet connection provider, then it may provide useful information if you then call the call center as “The DNS server is not reachable” or “the router is not reachable”.
In Windows 10 there is a diagnostic tool and automatically resets the connection.
This is the menu Start -> Settings> Network and Internet, on the right side of the “Network Status” screen.
In Windows 10 you can also reset the network card from the same screen by pressing on restore the connection.
7) Complete network recovery
The steps for manually restoring the network are as follows:
Reset the TCP / IP stack
Release the IP address
Renew the IP address
Restore the DNS client resolver cache
These network commands must be executed in a command prompt window as administrator (see point 2), pressing enter after each one.
Then type the commands in this sequence:
– netsh winsock reset
– netsh int ip reset
– ipconfig / release
– ipconfig / renew
– ipconfig / flushdns
Then restart your computer.
This program has buttons to perform the following operations:
– PING of IP addresses and DNS servers
– change the Mac address of the system.
– Repair of WinSock and TCP / IP
– Reset VPN and proxy settings
– Repair Windows Firewall
– Release and renew the DHCP address
– Delete the Hosts file
– Delete the static IP settings (enable DHCP)
– Change DNS using the Google one
– Flush DNS Cache
– Clear Route / ARP table
– Recharge and release NetBios
– Enable LAN cards
– Enable wireless cards
– Restore internet options, Security and Privacy
– Set up default Windows network services.
8) Network Driver Recovery
If you have installed a network adapter driver or an update for the same (or a Windows 10 update), it may be useful to roll back the driver to an earlier version to troubleshoot Internet connection.
In the search box on mewnù Start, type Device Manager, then select Network adapters > name of the network adapter.
Press and hold (or right-click) the network adapter, and then select Properties.
In Properties, select the Driver tab and press the Restore Driver button.
Restart the computer.
You can also try reinstalling the network adapter driver.
To do so, following the procedure described above, in Properties> Driver press on Uninstall device and restart the computer.
9) Virus check
If on all the computers of the internet home it works while on one there is no connection, the problem is surely of software type.
It could be caused by a virus or some type of malware or with the browser.
Do an antivirus scan on your computer, try installing another browser other than the current one?
10) Disable the firewall temporarily
Uninstall or disable any Firewall programs (each antivirus suite also has a firewall) that may be poorly configured.
Also you can disable the Windows firewall temporarily from the command prompt launched as an administrator (always see point 2) using the command:
netsh advfirewall set allprofiles state off
To reactivate it, type:
netsh advfirewall set allprofiles state on
Then check also that a proxy is not set on Edge or Firefox and that the hosts file is clean.
To verify the proxy, go to the IE options, to the network connections tab> LAN settings.
To check that the hosts file is clean, open the hosts file with the notepad pointing to the C: \ Windows \ System32 \ drivers \ etc. folder (to open it you need administrator rights).
Delete all lines that do not start with # and save.
12) DNS Problems
When trying to access Google.com, the computer contacts a DNS server and asks for the IP address of the Google.com address.
DNS servers are assigned by the network provider and problems can sometimes occur.
Then try changing the default DNS using, for example, Google DNS.
13) Contact the call center
Finally, if nothing has worked for troubleshoot Internet connection, all that remains is to contact the call center of the network operator.