If you need to configure a TP-Link ADSL wireless router, model W8910G, to SAPO ISP (portuguese Internet Service Provider for ADSL connections),
please follow the picture I got when configuring mine, at my home place.
First of all, connect your PC using an ethernet cable to your router.
Use your browser (I used Internet Explorer 7.0) to access http://192.168.1.1
You should provide user and password to access the page (default user is admin, default password is admin, but you should change it asap).
After reaching the page, you should go to "Quick Setup" option.
Required values are 0 for Virtual Path Identifier (VPI) and 35 for Virtual Channel Identifier (VCI):
By clicking next, you should choose PPPoE connection type, with "LLC" Encapsulation Mode:
By clicking next, you should provide your PPP username and PPP password (provided to you by SAPO).
PPPoE Service Name shoud be blank, Authentication Mode should be AUTO:
By clicking next, you should provide IGMP Multicast and Wan Service (nothing was changed here):
By clicking next, you should provide DSL router IP and DHCP Mode (again, nothing was changed in this screen):
By clicking next, you reach the wireless configuration page. If you want to enable wireless access, check the "Enable Wireless" checkbox, and choose a SSID for your network (it is just a name for your network).
I changed it to "JF-TP-LINK", but you can put there any value:
The last page is just for confirmation. It will reboot the router. After that, you should have internet connection through SAPO ISP:
Note: You should protect your wireless network after making it available.
At least (although there are other strong mechanisms for doing that), you should configure a WEP 128 key for wireless access.
Please, remember that this settings will only affect wireless access to your router. Connections through ethernet cables will not be affected by this settings.
For doing so, please access the Wireless / Security option:
Change WEP Encryption to "Enabled" and provide a WEP key for you router (I’m providing a sample, but should change it to your own values, choosing characters between 0 to F):
On top of this, you can also provide a list of authorized mac addresses, by going into the Wireless / MacFilter option:
Enjoy!
Joao's space 