LAN autodetect settings

I use a IOG mifi device for internet access. I have found sometimes if pages are slow loading I can go to >Internet Options >Connections >LAN settings and autodetect settings will not be checked marked. If I check mark this option then everything loads normally. It will sometimes get unchecked again on it's own. Twice this morning already. I use SUPERAntiSpyware and WinPatrol to catch homepage and search engine changes and would like to have a way to detect LAN settings changes. Any thoughts on how this happens or a way to prevent it.


Windows Vista Home Premium Service Pack 2
Compaq-Presario NP230AA-ABA CQ5112F 2.50 gigahertz AMD Athlon 7550 Dual-Core
2942 Megabytes Usable Installed Memory
NETGEAR WNDA4100 N900 Wireless Dual Band USB Adapter