We recently setup a wireless network in our warehouse using all Cisco 350 Access Points and for the most part, it works fine but intermittently, maybe once a day, but not every day, for anywhere from an hour to 2 hours, mostly in the morning, it just comes to a complete crawl. Most people that are already signed in can work but it's really slow but others who try to login pretty much can't. Then all of a sudden, it works fine. We have like 40 AP's throughout the building going into Cisco switches. I can't see it being a problem with interference in the warehouse because I have a test AP going into a separate switch in the office and a pc a couple of feet away and when they have the problem, that goes slow too. Could outside interference in the area cause these types of problems. We are pretty close to an airport but that's still about a mile away so I can't see that being an issue. We just set it up and aren't even doing and encryption yet because I'm afraid that might make it worse. Any ideas? Thanks, Joe