Hi all, Both computers are running Vista Home Premium Retail. Both have WMP54G adapters installed. I have tried Linksys XP drivers, Linksys Vista drivers, Ralink XP drivers all with the same results. I have Manually set the SSID in the network adapter settings. Both computers are clean of virus' and spyware (Including tracking cookies). I have run a Wireshark log and there is no unusual traffic over the network. The network is secured with MAC address filtering, and WAP encryption. Neither PC's have moved physical location since they were running XP, either has the router(WRT54G v2). I have tried disabling encryption. The problem is seemingly random spikes of high latency over the wireless aspect of our home network, which has only occurred since we have upgraded to Vista. An example is that when I ping the router from my PC I get good results (1-2ms) most of the time but once every 30-60 seconds I will get a >1000 result. Sometimes it will even timeout. I get the same result when I ping my PC from the router. This causes files to stop transferring part way through, constant lag spikes in games, and problems with voip. Also if a web page is loading and a spike occurs the page will not load and a refresh is necessary. Any ideas would really be appreciated, thanks. prion Update: I have narrowed the problem down to the wlansvc service. This service is the same as zero config utility in XP but can't be disabled without stop WLAN completely. What I need now I guess is a way to get third party software that can control the WLAN. Anyone know of any or a way to install linksys utility on vista?