Admin page redirection problem

Hi

I just migrated a debian server with wordpress 1.5.3 to a windows server. This server is hosted on my local LAN.

Everything is alright after alittle modification to the settings, however, whenever i wish to access the admin page directly from my web browser with my username & password, https://byon.mine.nu:8000/wp-admin/, it doesn’t seem to be able to enter the page. Whether it’s https://byon.mine.nu/wp-login.php?redirect_to=%2Fwp-admin%2Findex.php

it just doesn’t work. I can’t enter the admin page like this.

I figured out a way, which is to enter by https://byon.mine.nu/wp-login.php

This is ok. but the other ways i couldn’t