Packet loss with cable but not in wifi

[notea]

Hi,
I have a Netgear DG834G v4 wireless router/modem, im experiencing a bit of a problem, when i ping google from my desktop which is connected via cable to the modem, i get a packet loss after about 15 seconds each and every time but when i dot the same from my laptop via wi-fi, well, there's no packet loss.. since i play most of my online games from my desktop, this is a bit of a problem for me.. thanks for the help in advance.. cheers 😀

 

[notea]

also when i ping the router from my desktop using ping 192.168.0.1 -t command.. the same thing happens but when i do the same from my laptop.. there's no packet loss