I have two Huawei E1550 modem which workes perfectly with networks other than AirCel.
When connecting using AirCel one of my device have some problem.It shows that connection has been established but I cannot access internet and sometimes it shows an error msg "device is not configured properly"(this occors only when using AirCel SIM and that too on one of the device).(I have tried both devices on same PC)

Device Info of modem:

Device1Device which is working properly)

Device name: E1550
Application port: COM3
Serial number: B5A4C***********
IMEI: 3546***********
Hardware Version: CD6ATCPU
Firmware Version: 11.608.14.15.311
Software Version: 23.001.03.15.999

SIM/USIM
IMSI number: 405809183919722
Own number(MSISDN): Unknown
Messages in SIM/USIM: 3 / 50
Contacts in SIM/USIM: 7 / 250
Message center number: +919809099060
PIN code status: Ready
ICCID: 89918090911189197227

Network status
Network name: AIRCEL
Network type: EDGE
Signal strength: 22, 99
RSSI: -69dBm
RSQUAL(BER): 99
RSCP: -145
Ec/Io: -32
Ec/No: not implement
Cell ID: B159
LAC Code: 086
CS network registration: Not registered
PS network registration: Registered
PS network attachment: Attached
IP address:
DNS server:

Network settings
APN: aircelgprs.com
Network selection mode: Automatic


Device 2modem which is having problem)

Device name: E1550
Application port: COM24
Serial number: B54CA***********
IMEI: 3534***********
Hardware Version: CD6ATCPU
Firmware Version: 11.608.14.15.311
Software Version: 23.001.03.15.999

SIM/USIM
IMSI number: 405809183919722
Own number(MSISDN): Unknown
Messages in SIM/USIM: 3 / 50
Contacts in SIM/USIM: 7 / 250
Message center number: +919809099060
PIN code status: Ready
ICCID: 89918090911189197227

Network status
Network name: AIRCEL
Network type: EDGE
Signal strength: 22, 99
RSSI: -69dBm
RSQUAL(BER): 99
RSCP: -145
Ec/Io: -32
Ec/No: not implement
Cell ID: B159
LAC Code: 086
CS network registration: Registered
PS network registration: Not registered
PS network attachment: Not attached
IP address:
DNS server:

Network settings
APN: aircelgprs.com
Network selection mode: Automatic



Please Help.