High Ping whenever another pc connects to my router or modem

[Superdog123]

I have been experiencing this for a long time. My speed is 15 download and 1 upload. I don't have a network card for my pc since im using wired connection. Whenever a pc or laptop connects to my modem or router the ping just starts to spike up and down non stop goes all the way up to 2000 sometimes. It mostly stays at 500-900. My modem can be a router at the same time, i also have a separate router but no matter which router pc's connects to the ping will always spike. I've tried to go to the modem and router website, everything i try won't work. I've reinstalled my realtek ethernet drivers, switched the wireless channels. The only options left is the dns relay for my router but the tickbox is locked for some reason and its always on no way for me to change it. My routers a d-link dir-615 and my modems a AR800 v2.5. Also ping only spikes when pc/laptops connects to the internet, never spikes when my friends and i connect our phones to the router/modem.

 

[oct]

Could be anything...

1. You have a bad memory/buffer problem on one of your network device. Try swapping/disconnecting one of the router, and testing packet loss off of your ISP Web site.

2. You have both routers set to use NAT. The spike in ping is cause by address conversion. Try setting the dlink to AP mode only.

3. Miss configured gateway address. Your packet are not being routed, but are flooding the network. They are bouncing between the dlink and modem causing high over head... unlikely, that problem happens more on managed router.

4. It could be a DNS problem. 8.8.8.8 is Google.com dns server. You could try and change DNS server client side only, to get a baseline of traffic over network. Be aware that your ISP DNS server should be faster then google.com. it is very hard to trouble shoot DNS problem if you don't know every hop a packet take.

http://windows.microsoft.com/en-us/windows/change-tcp-ip-settings#1TC=windows-7