Need help with Apple Airport Express

Mabonn, I had impression that AE is limited to 16 bit, but if it is the case you should have no sound at all.

You most likely get dropouts caused by interference like microwave oven. Changing channel helps but I ended up replacing router with dual band Linksys. My AE operates now only on 5GHz where there is very little traffic since dual band routers are not very common. In addition any outside interference is suppressed since 5GHz does not penetrate walls very well.

AE is dropping first second of each song with some DACs, that are not fast enough to re-sync. My Benchmark DAC1 doesn't do that but remedy for this is to crossfade songs in the player. Itunes has this option.

You will find in System-Router menu: Setup, Wireless, Security etc..

Select Wireless. It will open Basic Wireless Settings, Wireless Security, Guest Access etc. Select Guest Access. It will show option "Allow Guest Access" Yes/No - select "No".

Guest possibly cannot change settings but I have no use for this option and disabled it.

Matt, AE is by default set to receive both 2.4GHz and 5GHz. I use Linksys as two separate networks with different names: 5GHz with MacMini and AE, 2.4GHz with other computers. I could set my MacMini to transmit both frequencies but couldn't find how to connect Linksys on both simultaneously. Perhaps giving networks the same name would do it? I ended up with separate 5GHz network for music but adding 2.4GHz should make it even more immune to dropouts.

I second Czbbcl, you need to join existing network since AE does not work in peer-to-peer mode. You need to enter name and security code with Ethernet cable connected to your computer.

Matt, Do you mean Itunes cannot access music library?

Matt, I read your modem's data and it doesn't say it is dual band meaning it isn't (most common).
http://www.2wire.com/pages/pdfs/5100-000383-000_2W_Rev_B_0107.pdf

It also looks dated since it isn't 802.11n. My Cisco Linksys E2500 is only a wireless router while 3800hgv-b is a gateway (has modem inside). I had similar 2-wire modem before and started having internet dropouts (perhaps age - old caps). Decided on separate modem and router. Modem I use (Motorola 3360) works like charm (no dropout ever) but had poor reviews since previous versions were overheating (this version has better airflow). The reason for Motorola is support from my provider - AT&T that lists this model. Setting Modem-Router can be a little tricky and should be done the way they recommend it but it is easy if you follow steps. Linksys has other versions like for instance E2700. You need to find out what you need (USB ports etc.). It isn't high power wireless, so if you need distance over walls something else might be better (or use repeater). Mine is pretty much in the same room (loft). Hope it can help you. I'm not a computer wiz but I know who is - Almarg, in case you need help. He also has better overview of the situation and can recommend if you need the change.

Matt, It is not that AE cannot see your music library, but perhaps program you use to transfer music (like Itunes) cannot see your library.