MTN MANUAL Configuation Settings
Account Name: MTN
Homepage: http://wap.mtnonline.com
Username: web
Password: web
Access Point or APN: web.gprs.mtnnigeria.net
IP or Proxy Address: 010.199.212.002
Port: 8080

AIRTEL MANUAL Configuration Settings
Account Name: AIRTEL
Homepage: http://wap.ng.airtel.com
Username: Internet
Password: Internet
Access Point or APN: internet.ng.zain.com
IP or Proxy Address: 172.018.254.005
Port: 8080

GLO MANUAL Configuration Settings
Account Name: GLO
Homepage: http://wap.gloworld.com
Username: wap
Password: wap
Access Point or APN: glosecure
IP or Proxy Address: 010.100.098.022
Port: 8080

ETISALAT Manual Configuartion Settings
Account Name: ETISALAT
Homepage: http://www.etisalat.com.ng OR http://mobile.etisalat.com.ng
Username: wap
Password: wap
Access Point or APN: etisalat
IP or Proxy Address: 010.071.170.005
Port: 8080

Now you know the maual configuration of each network provider in Nigeria, You can ask questions if you have issues.
Read more>>http://www.wizloaded.com/2015/10/mtn-airtel-glo-and-etisalat-manual.html