why can't i ping over ethernet?

November 13, 2010 at 14:36:20
Specs: Windows XP
I have connected two computers (laptop and desktop) with a blue ethernet cable to create a LAN. The laptop can ping the desktop but not vice versa yet the desktop can ping oher devices over the same cable. I have done ipconfigs to check the IP addresses. I have disconnected other connections from the laptop (eg my mobile broadband). I have enabled the LAN.

See More: why cant i ping over ethernet?

Report •

#1
November 13, 2010 at 15:15:04
Did you use a crossover cable and not a normal straight through cable. A crossover cable is required when connecting computer to computer without going through a switch or a hub.

BTW: The colour of the outer sheath has little relevance. It is just to identify different cables of the same type when there is a bunch of them together.

Stuart


Report •

#2
November 13, 2010 at 17:13:04
Stuart. I don't know. How do you tell? I actually sort of solved the problem by disabling the Norton firewall (Windows firewall was already disabled). My ultimate aim was/is to set up a test wireless network with two computers going through two bridges and two antennas (one foot apart). I have sort of succeeded in that I can communicate between the two computers wirelessly but the throughput is abysmal (despite having very high power radios), between 0 and 5kbps when I would expect hundreds, with lots of timeouts.

Report •

#3
November 13, 2010 at 17:37:34
One of the ethernet cables is labelled "Enhanced Patch Cord 2835 E87647-DG 5U AWM" and "ETL VERIFIED TO EIA/TIA" etc and the other is labelled "TYPE CM 24AWG" and the same second part.

Report •

Related Solutions

#4
November 13, 2010 at 18:07:28
You cannot tell a crossover cable just by looking at it unless they have transparent plugs and you are familiar with the wiring of Cat5 cable. A cable labeled as a patch cord is probably not a crossover cable.

A crossover cable is one where the plug at one end is wired slightly different. Some of the pins are swapped over , pins 1- to 2 and 2 to 1, etc. instead of 1 to 1 and 2 to 2. You can buy a suitable cable from most computer stores.

Stuart


Report •

Ask Question