What could cause high local PC to PC ping times, while any PC to router ping remains low?

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  • What could cause high local PC to PC ping times, while any PC to router ping remains low?


Answer #1 | 20/12 2013 05:24
There's not enough information to really answer the question. Could be: 1. Incorrect network card settings 2. Faulty Ethernet cable 3. Faulty wireless antenna 4. Radio interference if using wireless 5. Distance from router if using wireless 6. Incorrect router settings 7. How many devices are attached to the router? 8. Do you have any apps running using up bandwidth?
Positive: 66 %
Answer #2 | 20/12 2013 09:20
Over wireless??? If so, you have two wireless devices talking at a high rate to the wifi router. If you have any interference nearby, that compounds the overall response of the wifi in the router itself. Just pinging the router with one PC over wifi produces only one handshake, little overhead. PC to PC over wifi means you have traffic to/from the router twice, and both PC want to talk as much as they can. That can also cause re-tries and other strange effects. If this is via wired connections, then it is most likely that one PC is slow to respond to pings, possible due to some network load, bad network drivers, or some other issues with the OS or network adapter. Is the ping 200+ms from both PCs (in both directions), or just one direction?
Positive: 60 %

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