Using the network utility ping to check a website’s status is a lot like knocking on a neighbor’s door. If the neighbor takes a long time to answer the door, he may be physically disabled or occupied with something more important. If the neighbor doesn’t answer your knock or ping at all, you may not be knocking loudly enough, he might not be at home or something may be seriously wrong with him.
If you are unable to successfully ping any websites you try, the problem may lie with your system, the website you are trying to reach or the infrastructure of the Internet itself.
No Internet Connection
If you apply Occam’s razor as your guide, the first thing to check when you can’t ping any websites is your Internet connection. If your Wi-Fi connection is disabled or your Ethernet cable is damaged or unplugged, you will not be able to ping any device or computer other than your own PC. A router or modem with its power cable unplugged may also be the culprit. From time to time, however, you may lose access to the Internet if your ISP or your Internet service provider is having network problems.
Your PC firewall or your local network’s router are able to block the Internet Control Message Protocol information packets that the ping utility sends to the Web server of the website you are trying to reach. The firewall may prevent pings or ICMP echo request packets from leaving your PC or they may block a website’s response or ICMP echo reply.
Check the ICMP or ping settings of your PC’s firewall and, if necessary, change them to allow ping ICMP message requests and incoming replies.
If your tried and failed to ping a website using its domain name instead of its numerical IP address, the problem may lie with the Internet’s system of Domain Name System servers. The Internet depends upon several DNS servers that maintain databases used to match a domain name to the actual IP address of the computer you want to connect to.
If one or more key DNS servers your ISP uses is down or has a corrupted database, you may not be able to ping any websites by domain name only.
Pings Blocked by Website
If you eliminate any network connectivity, firewall or DNS problems and you still can’t ping any websites, the problem may be that the websites you tried are just ignoring you. Each year, government, commercial and personal websites are crippled or brought down completely by Denial of Service attacks. Often, DoS attacks are due to a deliberate or accidental deluge of pings which overwhelm the server that tries to respond to them.
This is called the “Ping of Death.” To prevent this, Web servers may block all incoming pings or responses to pings at the router, firewall or server operating system level.
As the pressure to pass standardized tests increases, even preschools are spending more time on strictly academic subjects. Instead of a general introduction to the alphabet, many preschools include a ...Read More
Just because your little learner's lead teacher makes it look easy, doesn't mean that acting as an early childhood educator is simple. Teaching preschool age children requires highly specialized training ...Read More
The best time to send your child off to school depends largely on whom you ask. Proponents of starting kindergarten as early as possible believe it gives a child a ...Read More
Your little one may face a culture shock in daycare if your Christian values prevent him from doing things that are common in many daycare centers. That does not mean ...Read More
In the world of foster care and adoption, when it comes to siblings, keeping them together is always the first choice. Even though in your mind, you see yourselves all ...Read More
Most parents adore that toothless gummy grin, but whether you like it or not, teeth begin to surface as your baby turns around 6 months old and his first milk ...Read More
You can use the camera on your iPod Touch to take VGA-quality photos and store them on the device, but you can also transfer high-quality photos from your computer to ...Read More
Because it's not enough that your preschooler or kindergartner can build an amazing sand castle and (almost) tie her own shoes -- now you have to worry about her math ...Read More
While an early educational program might not ensure that your preschooler is Harvard bound, it can help her to learn better. Whether you are looking to build on a specific ...Read More
In the beginning of the PC revolution, when monitors where often 12 to 14 inches in size, using your keyboard directly in front of the screen was not an option; ...Read More
Instilling self-control by establishing and sticking with rules is the name of the game when it comes to reigning in misbehaving toddlers and preschoolers. Self-control -- something many adults could ...Read More
As the mom of a toddler or preschooler, you are probably well acquainted with the magic of dipping. There's just something about dunking her meal that can get even the ...Read More
Potty training is a normal part of every child's physical and emotional development, but not every child develops at the same pace. If your child is resistant to potty training ...Read More
The grief that accompanies parental death can trigger psychological side effects for your child. If these psychological effects are long term or if they interfere with your child’s emotional or ...Read More
According to the Encyclopedia on Early Childhood Development, 80 percent of children living in the United States have at least one sibling. Many children have more than one sibling, and ...Read More
There are a number of psychological tests used to measure intellectual ability in children, but there are a limited number that are available for preschool-aged children. Although measurement of skills ...Read More
Toddlers are curious by nature. Young children in the toddler stage are discovering their independence and are interested in exploring the world around them. However, their exploration can lead to ...Read More
You don't have to break the bank to throw your little one a top-notch bash. Free or low-cost places such as public parks are creative alternatives to the more pricey ...Read More
If you're looking for a fun activity for you and your preschooler, (and an unforgettable party treat) these puppy cupcakes are sure to please. If you want to get creative ...Read More
Sensory play activities are enjoyable and educational for your toddler or preschooler. You're encouraged to join in the fun but expect to get your hands messy! Any pastime that stimulates ...Read More