I would STRONGLY recommend that you update your client drivers, as well as update Windows to latest build level as there are fixes for these timeouts. ANY wireless issue should trigger you to check that the latest drivers are installed!!!   In addition, there are also issue with latest Windows builds and 11r. If you see an "invalid MIC" issue then disable 11r for that SSID. My understanding (I may be wrong) is Microsoft are working on a fix but it'll be a while. ... View more