Theres probably something wrong with the cable wire, or the firewall is turned on and a very strict Network security program was installed.
Another answer is the traffic. There may be to much network traffic that the packets sent might be preempted in the process.
Firewalls prevent pings sometimes, especially Windows Firewall.
Are they on the same switch or different switch?
Is there a router / firewall / bridge between the switches?
Are you sure it's a switch and not a hub?
Please note that to get a reply for a ping, data needs to move in BOTH directions. If you don't get a REPLY to your ping, several things may be wrong:* The ping doesn't reach the destination computer
* The destination computer is set up to ignore pings
* The ping-reply from the destination can't get back to you
Causes for the first and third point may include problems with the physical connection, problems with the default gateway on the computers, routing problems, rules such as ACLs that block specific types of messages.
using a wrong cable or wrong ip address or bad NIC card
Switch Power off, Wrong cable (needs straight through cable), network traffic, wrong IP address
pcs dont match
ping is the easiest.
pcs dont match
You have multiple routes between you and your ping target.
Using ping pong table tops is advantageous in that they prevent the table or surface that the game is played on from being damaged. They help to avoid scratches and dents from developing and are also a quality surface to play the game on.
LOW ping. The lower the better Ping is the delay between your commands and your players actions. So if you have low ping there will be a very short dalay but if you have high ping there will be a delay.
Could be too much compression for the fuel being used, or maybe the timing is too far advanced.
There are a couple of ways to stop a ping of death. If you have an anti-virus and firewall installed on your PC this will prevent this from happening. Also because a ping of death can cause your PC to freeze up you can reboot to fix this issue.
Ping -a (servername)
ping is the easiest.