.Originally Posted by travZEman
So you having the same problem, your using the Nintendo WiFi USB adapter in your PC and connecting to that via the Wii Console correct? If so, no you can't really improve the signal strength with the limited functionality of the software the USB Adapter uses. The only thing you can do is try and put some distance between it and devices that would be admitting the frequency. That USB isn't bad but there are better. As for the always having to re-setup the connection I would recommend
SCREENSHOTS for the Steps below can be located here
Connecting Wii Online Using the Nintendo Wi-Fi USB Connector
1. On the Wii console's main menu, click on the 'Wii button' in the lower left corner.
2. This will take you to the settings screen. On this screen, click on 'Wii Settings'.
3. Enter the Wii System Settings menu and click on 'Internet' on screen 2.
4. Click on an empty connection slot, signified by 'none'.
5. Choose 'Wireless Connection'.
6. Select 'Nintendo Wi-Fi USB Connector'.
7. Press Next on the Wii console to continue.
8. Go back to your PC. In the Windows XP* registration tool, the Nintendo Wii's nickname will appear. Note: You must do this immediately after performing step 7.
There will be a small, yellow "?" next to it.
9. Click on the Nintendo Wii's nickname and select 'Grant permission to connect.'
10. A blue, standing man icon will appear next to the Wii's nickname. The Wii console will now have permission to connect to the USB connector.
11. After you have established a connection with your PC, you'll see a Next option appear in the Wii console's Internet Setup. Select Next
12. Select OK to test the connection.