Four laptops connect to it on a daily basis, 2 Dell XPS, 1 Dell Precision and a Lenovo.
The XPS's and the Lenovo run without problems. The Precision, however, continuously drops its network connection and regains it again, at very intervals.
The Dell ControlPoint log shows that the wifi state changes status from idle to connected at very brief intervals - down to less than a minute. The log also states that "No compatible WWAN device could be found." The signal strength from the router is excellent.