in ThinkPad: L, R and SL series Laptops https://forums.lenovo.com/t5/ThinkPad-L-R-and-SL-series-Laptops/R400-wifi-card/m-p/2175141 ThinkPad: L, R and SL series Laptops topics Fri, 25 Sep 2015 01:34:20 +0000 tp05_en <![CDATA[ ]]> https://forums.lenovo.com/topic/findpost/1304/2175141/2175141 I just purchased and installed an IBM Atheros Ar5bhb63 mini pci wifi card for my R400. The internet had stopped working so I was hoping the new card would get things working again. The problem is the pc locks up on startup and tells me to remove the "unauthorized mini pci card and restart&qu ]]> Fri, 25 Sep 2015 01:34:20 +0000 https://forums.lenovo.com/topic/findpost/1304/2175141/2175141 KiowaEagle