My internet connection keeps dropping out with my new WL adapter. I installed a new Trendnet Router at the same time. The main computer seems to be working fine, but my wireless connection is worse than with my 5 yr old Microsoft adapter. Any help?

Let me state how I think you have this setup
Printer is Ethernet ---------- Ethernet (WL-330GE wireless adapter)
WL-330GE adapter >>>>>> Wireless >>>>>> New Router

Diagram and mode is from
https://www.asus.com/Networking/WL330gE/HelpDesk_Manual/
ASUS WL-330gE user's manual in English

So I think you need to use Ethernet Adapter Mode !

The computer shown would be your printer
As you are using wireless you need to set up the wireless ssid and the wpa or wep encryption to match the new router I am guessing .
in section 4.3 advanced settings in the above manual link from ASUS.
Also the access point has an ip address by default as 192.168.0.1 255.255.255.0 you would have to most likely have 176.16.1.2 and the new router as 176.16.1.1 and the same subnet mask what ever it is maybe it is 255.255.255.0 then make the printer 176.16.1.5 subnet 255.255.255.0 or whatever subnet you use.
Make sure you log into the new router and alter the DHCP server to assign leases from 176.16.1.10 to 176.16.1.254 with same subnet mask.

It can drop signal if there are other devices working in 2.4GHz band interfering with it. Try to switch over to 5GHz band.

The "excellent" is the signal-strength between your wireless adapter
and your wireless router.
You still need to select the SSID ("network name") that you configured into the router, and enter the password for your network, before you can connect to the Internet.
Compare it to having a brand-new mobile telephone. Until you dial a friend's number, and the friend answers, all you have is an "excellent" telephone.

You need to enter the wireless key from your router once before the adapter will connect. The key is either on the label on the router or in the wireless section of the router.

is there any other computer online using the router.
If not then check the Internet through the router.

check the Ip address on the wireless computer .
make sure that it is not static .

Click Here for more information about routers and wireless network

well!! I have an answer for you.your comp is loosing the IP address. goto start - programmes - accessories - dos prompt. type ipconfig.you`ll get ip address,subnet mask,default gateway.copy it. goto network and sharing center in vista and network connection under control panel in XP,IN Vista,click on view status,goto properties and double click on internet protocol(tcp/ip) or IPv4In XP,right click wireless network connection and goto properties and double click on internet protocol(tcp/ip).type in the IP address,subnet mask,default gateway.in DNS server address type the default gateway in primary DNS and in secondary 4.2.2.2. your connection won`t drop after this.

You might need to go into the setup on your router and be sure it is set to automatically give IP addresses to new devices.

I know you've heard this many times by now, but disconnecting the power from the router for about 30 seconds then reconnecting power should work. Obviously not. If your Xbox and laptop are doing the same, then it's not a computer problem; we can narrow it down to the router, the modem, or the internet connection itself (whether it be DSL or Cable). You may end up having to throw money at the problem and purchasing a new router. I'd recommend an 802.11n router from Linksys. If you're not willing to shell out money, even if you are, you should really try the Trendnet web site or giving them a call. You may just need to update the firmware. Try starting with Trendnet since the problem can be narrowed down to your router. Please let me know what happens.

just try to power down your router for a minute or two then fire it back up again...9times out of 10 this resolves the issue...failing that try re-installing the wireless adapter.... hope this helps

To enable WEP encryption requires configuration changes in two places the router (WL-520G) and for the network adapter on the associated with the computer expecting to use the wireless router. Do you both believe you made the appropriate changes to both devices required? The router and the computer

Another possible issue is either the router or the network adapter do not support WEP meaning the option is not possible at all.