If it is for only a few devices it is possible to use parental controls to stop some devices from accessing wifi. Find out the Mac address of the devices, and add them to parental control.

Pinged over LAN and WLAN. Bandwith control is off. Ping spikes also occur when a phone is the only connected device. Max download speed is 10mb/s. This is my main topic:...

No problems when surfing the internet, except the occasional freeze when watching streams. (normally 10mb download speed, except for, well, those lag spikes I have.) The spikes are a problem during...

I have the exact same problem, did you find a fix? Did you got any information from tp link? I know this is a old post, but I think you will get an email notification.

I have the same problem. Pinging the router shows that the delay is at the router. Also a WINMRT shows that the delay starts at the first hop.Did you find a fix for this problem already?

Model : Hardware Version : Firmware Version : ISP : Hey guys, I'm receiving ping spikes over LAN and WLAN, every 2-3 minutes, I get a ping spike of 700-1600ms. I have updated to the latest firmware....