Cannot connect to router?

After I erased my macbook, it has been since been very hard to connect to my router. It always says connection interrupted or connection timeout, even though i type the password correctly :S It started working a few weeks back for a while, but then after like two weeks, i haven't been able to connect again :S. It always makes me connect to my modem, which has a very bad wireless range? DX. I can connect to my router when bootcamping windows on the same machine, and I can also connect to the router with my newer macbook. :S Help anyone?

Stuff I think you might want to know:
- '08 macbook
- 10.5.8
- Modem -> NetComm NB9W MyNetGateway
- Router -> D-Link DIR-615
- WEP password for both

Have you tried using WPA2 instead of WEP and its not been cracked yet way more secure.

If, for some reason, you must use WEP, have you tried putting a $ before your password when entering it into the MacBook?

AirPort, Time Capsule: Joining an encrypted wireless network

After I erased my macbook, it has been since been very hard

Click to expand...

What did u erase and did u do a clean install?