|Security is set to WEP, is WPA more compatible? Or does it vary with devices?|
WPA is more secure. WEP can be cracked quite easily now with a tool that's freely available on the internet. I would definitely change your encryption to WPA
The only way to change the Channel to an actual number is to set the Channel Width to "20Mhz Only". So should I do that then? Is there a way to find out what channel is the best to set it to?
I would yes.
I would also recommend using software like "netstumbler" to scan WLAN's in your area. What you're looking for is which channels are in use closest to you. You're going to want to pick a channel that's not being used very much thus producing less interferance.
Don't forget, items in your home can cause interferance too....like a cordless phone and microwave oven (when it's running).
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.