I placed my old wireless router at my mother's home, where is 200KM far away. Since now I moved to a new city, i decided to buy a new wireless router for the ADSL broadband.
i had spend 5 hours search on internet, to find a wireless router that can met my requirement: large signal coverage, stable. This is due to some of my coworkers living near my house. And i would like to cover them.
stable is also important, the old wireless 54M 802.11g wireless router that i bought is not stable, if i disable wireless security, it works fine, but after enable wpa wireless protection, the connection interrupts about once every hour, i don't want to use wep encryption as it unsecure and useless. my brother told me his wireless router has the same problem, the same brand, which is very famous in China.
the brand i consider to buy is netgear, link-sys, but i didn't find my favorite. later i found D-Link DIR-625, which is 802.11n, it seems 802.11n has large coverage than 802.11g/b, so I decided to purchase a 802.11n wireless router,

i was almost going to buy the D-Link DIR-625 wireless router, but when i check the D-Link website. it was strange that this product has been deleted. is that this product any problem or bug? i was afraid to buy it.
later i found the D-Link DIR-615 is on their website and marked as new product, i checked the price on Taboo, 330RMB. Same as D-Link DIR-625, acceptable. i bought it without hesitate.

In order for other house able to receive good signal, i placed this D-Link DIR-615 wireless router on the roof together with a ADSL modem, the signal can cover 1/3 of the entire village where we live, far to 200 meter.

the configuration interface is in English, here is a list of what the configuration option are available.
Firmware Version: 2.23 Hardware Version: B2 Product Page: DIR-615
Setup/ Internet; Wireless Settings; Network Settings
Advanced/ Virtual Server; Port Forwarding; Application Rules' Network Filter' Access Control' Website Filter' Inbound Filter; Firewall Settings' Advanced Wireless' Wi-Fi Protected Setup' Advanced Network'
Tools/ Time; SysLog; EMail Settings; System; Firmware; Dynamic DNS; System Check; Schedules
Status/ Logs; Statistics; Internet Sessions; Wireless
Support(help)

i had been using this D-Link DIR-615 wireless router for 5 days now, pretty satisfied with it.