Не подключается интернет через 3G модем

Может еще что-то попробовать?

не понятно что это за файл /etc/ppp/peers# nano provider
в нем я изменил на всякий случай
#/dev/modem - т.к. этого у меня нет вообще в /dev
/dev/ttyACM0

# example configuration for a dialup connection authenticated with PAP or CHAP
#
# This is the default configuration used by pon(1) and poff(1).
# See the manual page pppd(8) for information on all the options.

# MUST CHANGE: replace myusername@realm with the PPP login name given to
# your by your provider.
# There should be a matching entry with the password in /etc/ppp/pap-secrets
# and/or /etc/ppp/chap-secrets.
user "myusername@realm"

# MUST CHANGE: replace ******** with the phone number of your provider.
# The /etc/chatscripts/pap chat script may be modified to change the
# modem initialization string.
connect "/usr/sbin/chat -v -f /etc/chatscripts/pap -T ********"

# Serial device to which the modem is connected.
#/dev/modem
/dev/ttyACM0

# Speed of the serial line.
115200

# Assumes that your IP address is allocated dynamically by the ISP.
noipdefault
# Try to get the name server addresses from the ISP.
usepeerdns
# Use this connection as the default route.
defaultroute

# Makes pppd "dial again" when the connection is lost.
persist

# Do not ask the remote to authenticate.
noauth

может есть какая то проблема в этом файле /etc/chatscripts/mts?

 ABORT "BUSY"
 ABORT "NO ANSWER"
 ABORT "NO CARRIER"
 ABORT "ERROR"
TIMEOUT 5
 "" ATZ
 OK AT+CGDCONT=1,"IP","internet.mts.ru"
 OK ATD*99***1#
 CONNECT

например предпоследняя строка от другого модема команда ?