May be that the dhcp client of the xbox is not completely standard and does not "understand" the dns settings the dhcp server of the router is broadcasting. I remember a similar issue with a PS2, some years ago... If the xbox operating system allows manual setting of dns then you should try as dns t...

I also think that this trouble has to do with the leasing time, infact for a reserved ip the lease lasts for about a week. You should restore the full range of dhcp (2-254) and from the page "lan clients" carefully insert all clients with the mac and the reserved ip. Save, reboot the router, and the...

This little utility worked for me:
http://darkwolf.altervista.org/forum/tpmod/?dl=item27

Dear thechief, I successfully used adam2_defrag on a dlink g604t with firmware routertech version 2.8 and on a dlink 504t with firmware ... v.3 dlink :shock: I must say that your "shining knight" is really powerful, another good job! "Successfully" for me means that after the use of adam2-defrag, th...

Upgraded successfully my dlink g604t to firmware 2.91.1 (from 2.8 ) through its web gui after a defragmentation of the environment. All is working like a charm ... great firmware indeed !!