Huawei B683: How to set your Wifi Name(SSID) and Password.

1. Enter 192.168.1.1 in the url address bar, then enter.
2. Enter admin and admin for username and password, respectively.
3. Click Settings, select WLAN.
4. Enter your preferred Wifi Name(SSID) for your router.
5. Enter preferred wifi password in WPA Pre-shared Key textbox.
6. Click Apply.

PLDT MyDSL SpeedSurf 504AN: How To Change Default Wifi Password

1. Enter 192.168.1.1 in the url address bar, then enter.
2. Enter adminpldt and 1234567890 for username and password, respectively.
3. Click Network Tab, select WLAN Menu.
4. On the Left Pane, select Security.
5. Change the default password then Enter your preferred Pre-Shared Key, then Apply.
6. Click Save.
7. Select Admin, Commit Changes then Reboot.

PLDT myDSL ZXV10 W300: DMZ and DDNS Settings

For Demilitarized Zone (DMZ):

1. Type 192.168.1.1 in the URL address
2. Enter adminpldt and 1234567890, as username and password respectively.
3. Go to Advance Setup, click NAT.
4. Click DMZ,  select Enable then enter your device IP address in DMZ Host IP Address.
5. Click Save.

For DDNS Setting:

1. Go to Access Management.
2. Click DDNS
3. Select Activated to Enable Dynamic DNS.
4. Enter hostname, username and password  of your dyndns account for your dvr.
5. Click Save.

How to access Advance Settings and DMZ in ZXDSL 831ii modem?

1. Type 192.168.1.1 in the address bar
2. When prompt with username and password. Use 'admin' and 'bayandsl', respectively without the qoute. 
3. Go to Advance, in the left pane click NAT.
4. Click DMZ, choose Enable.
5. Enter the IP Address of the device you want to access in the internet.
6. Click Save.

To make sure your entries has been saved, Reboot the modem and access it again.