Chris bought a fourth Airport Express, but now the wireless client is broadcasting the Wi-Fi information by numbers, not names. So he has no clue what devices are what. He says it happened after upgrading the software. Leo says that's baffling, but he has a hunch it's the device's MAC addresses.
Once your wireless router is set up, all of your devices will remember the Wi-Fi password automatically. While this is convenient, it can be problematic if you've forgotten the password -- especially when it comes time to set up a new device on the network. Fortunately, it's possible to look up your Wi-Fi password without resetting the router.
Chris has a Wi-Fi issue in his house, and he's been told that he can only have three Airports in his home because it would cause problems. Leo says there shouldn't be a limit with WDS if the other Airports are just passing along the data and extending the network. If they're all on the same channel, then the limit will probably be in force since collisions could occur. The trick is to get the channels that are overlapping as far apart as possible, around 100 feet away. This is to reduce Wi-Fi congestion. It can work, but it could be a bit less reliable.
Michael has a computer that drops off the network from time to time, causing him to restart either the computer or the router. Leo says it's probably not the router since other computers aren't effected. If a computer drops off the network, then there's probably an issue with Mike's ethernet card since it's wired in. He should first replace the ethernet cable. That's the cheap and easy fix.
Jeff has a 3000' square foot house and has several Apple Airport Expresses to relay the signal from his Airport Extreme. Leo says that Jeff should have the Express in 'Bridging mode' and should let the Airport Extreme choose the channel because it will adjust according to congestion. Just select the option to extend the network and let it handle everything else.
Fred is remodeling his home and he's got open walls right now. What cabling should he install so he's set for the future? Leo says he should install Cat 6 Ethernet cable. That would really future proof his home with fast data networking. Or he could just go with wireless networking. He should at least run conduit in the walls and as the technologies change, he can then reinstall whatever cable he needs. Fiber optic cable is pretty cheap, but the switches are expensive. That's why Ethernet is still the best way to go.
Ken is wondering if he should use Watchguard on his Wi-Fi network for added security. Leo says he doesn't need this. These are internet security devices, or firewalls, that he'd run in his house. Routers are not very well designed and are commodity products, so they tend to have security flaws. Getting a better router would be a better way to increase security. Leo suspects Watchguard would be more than he actually needs.
Monny has a bunch of XP machines that he has to upgrade. Leo says that he doesn't necessarily have to. It is possible to operate XP safely online. Here's what you can do -
Walt and is using an old server as a home computer. He uses Alarms.com to monitor his home security system, and it works wired. But when he changes over to the wireless configuration on the camera, one of his cameras will not connect.
Leo says that there may be a DHCP conflict that's preventing it, or the password based security is the issue. He should try turning off security on the router to see if it works. It may be the older camera can't be supported with the newer security standard used by the router.
Ray has a friend who just bought a MacBook Air and he's having trouble connecting to his Canon wireless printer. He can print when it's hardwired, but not wirelessly. Leo says that he's used a Canon Pixma wireless printer for years. The question is, will it print with any other computer? If so, then it isn't a network issue. Leo says to remove the printer and then add it again. It may have had a problem when it was first added. Leo also recommends using the Apple drivers as opposed to the separate drivers from Canon.