Internet is acting funny

I've already posted on the malware forum, but I have a feeling this might not be a malware issue. I wish this forum had a good "do this first" sticky like the malware forum, but I guess this is a different beast. My internet connection has been acting funny. For the last few days it has been kicking me off the internet for no apparent reason (microwave is not running either!). I also will get kicked off the Wii. Let me tell you that I have my laptop, DVR, and Wii all on the same wireless router at my desktop. Everything always worked fine until I got a new computer with Vista. I also recently installed a wireless surround speaker system on my TV, but the problems still occur when it is turned off. For a long time now I have had an exclamation point on the internet activity animation icon (2 computers) on the right of my taskbar and I am getting "limited access" for my wireless connection. The internet had been working fine regardless of this until recently. I also recieve error messages occasionally such as "Host process for Windows services stopped working and was closed." Also, does anyone know how to stop Windows narrator from loading at startup? I turned it on from the sign on screen just to check it out. I have it turned off from the sign on screen now, but it keeps loading on startup for some reason. Thanks.

 

I fixed my network problems. I undid all my network assignments and things started working better. Then I installed Vista SP1 and my computer no longer tells me I have "limited connectivity" and I haven't gotten any errors either.