［求助］GPRS 无线上网频繁掉线

senghoo

设备为华为 E176G
刷了最新固件解决了锁网问题。
上网用wvdial
但是拨号平均10 分钟掉线一次
wvdial 配置：
[Dialer gprs]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init5 = AT+CGDCONT=1,"IP","CMNET"
Phone = *99#
APN = cmnet
Idle Seconds = 300
Password = CARD
Modem Type = USB Modem
Stupid Mode = 1
SetVolume = 0
Compuserve = 0
Modem = /dev/ttyUSB0
Auto DNS = 1
Ask Password = 0
ISDN = 0
Username = CARD
FlowControl = Hardware (CRTSCTS)
Baud = 9600

出错信息：
--> Disconnecting at Fri Nov 20 21:22:27 2009
--> The PPP daemon has died: A modem hung up the phone (exit code = 16)
--> man pppd explains pppd error codes in more detail.
--> Try again and look into /var/log/messages and the wvdial and pppd man pages for more information.

PPP日志为：

Nov 20 14:24:27 senghoo-lap pppd[18415]: pppd 2.4.4 started by root, uid 0
Nov 20 14:24:27 senghoo-lap pppd[18415]: Using interface ppp0
Nov 20 14:24:27 senghoo-lap pppd[18415]: Connect: ppp0 <--> /dev/ttyUSB0
Nov 20 14:24:27 senghoo-lap pppd[18415]: CHAP authentication succeeded
Nov 20 14:24:27 senghoo-lap pppd[18415]: CHAP authentication succeeded
Nov 20 14:24:28 senghoo-lap pppd[18415]: Could not determine remote IP address: defaulting to 10.64.64.64
Nov 20 14:24:28 senghoo-lap pppd[18415]: local  IP address 10.39.27.194
Nov 20 14:24:28 senghoo-lap pppd[18415]: remote IP address 10.64.64.64
Nov 20 14:24:28 senghoo-lap pppd[18415]: primary   DNS address 211.136.17.107
Nov 20 14:24:28 senghoo-lap pppd[18415]: secondary DNS address 211.136.20.203
Nov 20 14:25:21 senghoo-lap pppd[18415]: LCP terminated by peer
Nov 20 14:25:21 senghoo-lap pppd[18415]: Connect time 0.9 minutes.
Nov 20 14:25:21 senghoo-lap pppd[18415]: Sent 6029 bytes, received 10285 bytes.
Nov 20 14:25:21 senghoo-lap pppd[18415]: Modem hangup
Nov 20 14:25:21 senghoo-lap pppd[18415]: Connection terminated.
Nov 20 14:25:21 senghoo-lap pppd[18415]: Exit.

有些时候链接还出现：

--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Sending: AT+CGDCONT=1,"IP","CMNET"
AT+CGDCONT=1,"IP","CMNET"
OK
--> Modem initialized.
--> Idle Seconds = 300, disabling automatic reconnect.
--> Sending: ATDT*99#
--> Waiting for carrier.
ATDT*99#
NO CARRIER
--> No Carrier!  Trying again.
然后一直尝试拨号

suddenkiller

--> The PPP daemon has died: A modem hung up the phone (exit code = 16)
--> man pppd explains pppd error codes in more detail.
是不是驱动还不稳定啊。

senghoo

没人能帮我解决？