Easy Steps To troubleshoot network problems

 Issues can arise at numerous points along the network. Before you start trying to troubleshoot any issue, you want to have a clear understanding of what the problem is, how it came up, who it’s affecting, and how long it’s been going on. By gathering the right information and clarifying the problem, you’ll have a much better chance of resolving the issue quickly, without wasting time trying unnecessary fixes.

Steps To troubleshoot network problems

1. Check the hardware. When you're beginning the troubleshooting process, check all your hardware to make sure it's connected properly, turned on, and working. ...

2. Use ipconfig. ...

3. Use ping and tracert. ...

4. Perform a DNS check. ...

5. Contact the ISP. ...

6. Check on virus and malware protection. ...

7. Review database logs.

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TOP 5 NETWORK TOOLS ALL IT PROS SHOULD HAVE IN THEIR TOOLBOX

                                                       

Like a good plumber or electrician, every network administrator needs a good set of tools in their toolbox to get the job done right. Whether you’re the new guy in the office or a seasoned veteran, these tools will serve to help you investigate and troubleshoot countless issues as they arise on your network. Everyone will have their preference as to which tools they prefer to use, but the ones listed below have been chosen for their ubiquity in the general networking industry. Tastes will change and new tools will surface as the years go on, but many of these have been around for a long time and with very good reason.

So, without further ado, here are our top 5 network troubleshooting tools.

1. Ping

Ping is likely the number one utility that every tech pro will use on a daily basis. It helps us to determine two things: latency and packet loss. Because ICMP is typically the lowest priority packet in the pecking order, it doesn’t tell us what the problem is. Instead, it tells us that there is a problem that needs to be addressed. Usually, if there is either packet loss or latency (or both) this can indicate bandwidth saturation over a link or even a bad network cable or port on a switch. Regardless, this will almost always be your first go-to utility when you begin your troubleshooting process. Figure 1 shows ping running in Windows 10.

2. Traceroute / Tracert

This is probably second in the top three utilities you’ll use on a daily basis. Traceroute is invaluable for telling us what network devices are between one point and another, and gives us some data on what those devices are doing. Some of the extra data it provides are latency values (min, average and max) and host names of the devices, if they’re configured to have them. This also helps us to figure out where these “hops” are, as ISPs typically include some sort of nomenclature to determine which state or country they’re in. On a private network, this may be less obvious. Traceroute can also help to diagnose routing issues, especially when we have more than one network connection to the outside world. Figure 2 shows a tracert in Windows 10.

3. Ipconfig / Ifconfig

Rounding out the last three are Ipconfig (Windows) and Ifconfig (Linux / Unix). When we need to know the IP address(es) of the host that we’re working on, these are the utilities to use. Not only will it provide IPv4 information, but it will also provide IPv6 addresses, MAC addresses, DNS servers, default gateways and data with regard to how much traffic is flowing over the interface along with errors and dropped packets. Figure 3 shows the Ipconfig command in Windows 10.

4. Nslookup

This is a great utility for two things: locating the IP addresses associated with a domain name and checking to see that DNS (Domain Name System) resolution is working for our host. When we enter www.google.com into our web browser, the computer invisibly queries the DNS server to find the IP address attached to that host name. Nslookup has the ability to not only query our configured DNS server, but also to query any other DNS server we wish. This can help us test remote DNS servers for our clients or even for our own ISP. Figure 4 shows a Windows 10 Nslookup.

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Ways to Reset Network Settings on Android:

                

 In this Article I will teaches you how to clear your Android’s Wi-Fi, cellular data, and Bluetooth network settings all at once. You can reset your network settings in the Settings menu. However, the Settings menu is different depending on the make and model of the phone you are using.

Ways to Reset Network 

1. Swipe up from the bottom of the screen. This displays a list of all apps on your phone.

Your apps may be displayed on multiple pages. Swipe left and right to move from one page to the next.

2. Open the Settings Image titled Android7settings.png app. The Settings app has an icon that resembles a gear. Tap this icon to open the Settings app for your Samsung Galaxy.

If you are using a different theme, the icon for the Settings menu may have a different icon.

3. Tap General management. It's near the bottom of the Settings menu in the Settings app. This displays the General Management menu.

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5. Tap Reset. It's at the bottom of the General Management menu. This displays the Reset menu.

6. Tap Reset Settings. It's the blue button below the text on the page. This takes you to a confirmation screen.

If you have a security password, PIN, or pattern set, you are required to enter it in order to continue.

7. Tap Reset Settings. This confirms that you want to reset your network settings and resets your settings.

How to Reset Network Settings in Windows 10

 1. Go to Start menu > Settings, then select Network and Internet.

2. In the left navigation pane, select Status to make sure you're viewing the network status window. Then scroll down until you see the Network Reset link.

3. Click the Network Reset link and review the Network Reset information message. When you're prepared to network your reset settings, select Reset now.

4. Select Yes in the network reset confirmation window. This will initiate the reset process and restart your computer.

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6. When the computer restarts, you'll notice that your network connection isn't active. This is because your network card reset and released its previous connection. Just select the network icon, pick the network you want to reconnect to, and choose Connect.

7. If your TCP/IP settings are set to automatically detect, your network connection should detect the appropriate network settings and connect to the internet without any problems.

Fixing Any Remaining Settings:

If you configured a VPN client or other network software before the network reset, you may need to reconfigure them to get them working again.

Fixing this software is as simple as opening the VPN software and entering your IP and other settings like you did when you originally installed the software.

If you were connecting to a corporate network using a proxy server, you may need to reconfigure your proxy server settings.

1. Select the Start menu and type Internet Options. Select Internet Options.

2. In the Internet Options window, select the Connections tab.

3. Select the LAN settings button, and in the LAN Settings window, select Use a proxy server for your LAN. In the Address field, type the address for your corporate LAN proxy server. Select OK on both windows to accept the changes.

4. You may need to restart your computer for the changes to take effect, and your network card to reconnect to your corporate network.

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How to Troubleshoot a Network Within Few Steps

                                                                    

Issues can arise at numerous points along the network. Before you start trying to troubleshoot any issue, you want to have a clear understanding of what the problem is, how it came up, who it’s affecting, and how long it’s been going on. By gathering the right information and clarifying the problem, you’ll have a much better chance of resolving the issue quickly, without wasting time trying unnecessary fixes.

 I always start troubleshooting using these simple network troubleshooting steps to help diagnose and refine the issue.

1. Check the hardware:

When you’re beginning the troubleshooting process, check all your hardware to make sure it’s connected properly, turned on, and working. If a cord has come loose or somebody has switched off an important router, this could be the problem behind your networking issues. There’s no point in going through the process of troubleshooting network issues if all you need to do is plug a cord in. Make sure all switches are in the correct positions and haven’t been bumped accidentally.

Next, turn the hardware off and back on again. This is the mainstay of IT troubleshooting, and while it might sound simplistic, often it really does solve the problem. Power cycling your modem, router, and PC can solve simple issues—just be sure to leave each device off for at least 60 seconds before you turn it back on.

2. Use ipconfig:

Open the command prompt and type “ipconfig” (without the quotes) into the terminal. The Default Gateway (listed last) is your router’s IP. Your computer’s IP address is the number next to “IP Address.” If your computer’s IP address starts with 169, the computer is not receiving a valid IP address. If it starts with anything other than 169, your computer is being allocated a valid IP address from your router.

Try typing in “ipconfig /release” followed by “ipconfig /renew” to get rid of your current IP address and request a new one. This will in some cases solve the problem. If you still can’t get a valid IP from your router, try plugging your computer straight into the modem using an ethernet cable. If it works, the problem lies with the router.

3. Use ping and tracert:

If your router is working fine, and you have an IP address starting with something other than 169, the problem’s most likely located between your router and the internet. At this point, it’s time to use the ping tool. Try sending a ping to a well-known, large server, such as Google, to see if it can connect with your router. You can ping Google DNS servers by opening the command prompt and typing “ping 8.8.8.8”; you can also add “-t” to the end (ping 8.8.8.8 -t) to get it to keep pinging the servers while you troubleshoot. If the pings fail to send, the command prompt will return basic information about the issue.

You can use the tracert command to do the same thing, by typing “tracert 8.8.8.8”; this will show you each step, or “hop,” between your router and the Google DNS servers. You can see where along the pathway the error is arising. If the error comes up early along the pathway, the issue is more likely somewhere in your local network.

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5 Common Internet Issues and How to Fix Them

 he Internet is a unique framework we use in our daily lives. Both our professional and personal lives are tied to its functionality. As a result, when this functionality is disrupted, a lot of setbacks can occur. It also doesn’t help that potential Internet issues are as numerous as they are confusing, especially to those who aren’t IT experts.              

Fortunately, Internet connectivity issues are generally common and have simple solutions. We’ve got a few here to help you troubleshoot and hopefully resolve any errors you

1. Slow connections.

 Everything seems to be working, then suddenly Web pages start to take longer to load. Pictures don’t process as fast and streaming material becomes next to impossible. What happened?

Slow connections are common and, unless you have software that measures your current speed, you might not know what’s going on. But if you’re experiencing a slowdown, chances data is just being used up by another person or process. In other cases, if you’re using wireless, you might be too far from the router.

Take the time to check for active downloads, and make sure that if others are using the network they’re only using a bare bones process.

2. Excessive pop-ups.

 While they’re not directly related to connectivity, pop-ups are bothersome in their own right. No one likes visiting a Web page only to be bombarded with random ads for things they don’t care about. Additionally, these nasty ads can slap adware on your system along with trackers, draining performance and spying on your activity.

A good way to circumvent this is utilizing browser extensions like NoScript or AdBlock.

3. No Internet. 

You’re connected via cable or WiFi, and yet you can’t seem to get Internet service.

This issue occurs frequently for a range of reasons. One of the fixes is to just unplug the router, wait 15 seconds, and plug it back into the wall. Sometimes a total reset will resolve everything.

In other cases, the Internet goes down because of a service outage, in which case you’ll have to wait for your ISP to address the issue.

4. Slow Speed: 

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5. DNS resolution errors. 

A device needs an IP address to connect to the Web, which is usually “leased” by a modem/router. However, if you have a new modem, you might notice a DNS error when trying to load pages. This is most likely because of a faulty IP, and you’ll need to configure a new one.

In Internet settings from your control panel, you can select the IPv4 connection and check/uncheck auto or manual IP resolution.

Internet problems are never fun, but the bright side is that most of us have experienced them at some point, so there are plenty of readily available solutions.