After restart device the PPP connection is not established

RouterOS General
1

Heloo!

After restart device the PPP (3G) connection is not established.

I have RB 411U f-v: 5.2 and inside 3G modem (mPCIE-E Option GTM 380).


After configuration PPP clients everything works correct. Connection is made.

My configuration PPP (before restart):

[admin@MikroTik] /interface ppp-client> print
Flags: X - disabled, R - running 
 0  R name="era" max-mtu=1500 max-mru=1500 mrru=disabled port=usb2 data-channel=2 
      info-channel=2 apn="eradata" pin="" user="" password="" profile=default 
      phone="*99#" dial-command="ATDT" modem-init="" null-modem=no 
      dial-on-demand=no add-default-route=yes use-peer-dns=yes 
      keepalive-timeout=30 allow=pap,chap,mschap1,mschap2

My configuration ports (before restart):

[admin@MikroTik] > port print
Flags: I - inactive 
 #   NAME                         CHANNELS USED-BY                      BAUD-RATE
 0   serial0                             1 Serial Console               auto     
 1   usb2                                3 PPP <era>                    9600

When I do restar device, the connection is not established.

the log shows me:
“initializing”
“waiting for packets…”
“terminating… - could not acquire serial port”
“disconnected”


My logs after restart:

[admin@MikroTik] > log print
01:00:17 system,error,critical router was rebooted without proper shutdown
01:00:25 async,ppp,info era: initializing...
01:00:25 async,ppp,info era: reseting link...
01:00:25 async,ppp,info era: reseting link... - could not acquire serial port
01:00:25 async,ppp,info era: disconnected
01:00:25 async,ppp,info era: initializing...
01:00:25 async,ppp,info era: reseting link...
01:00:25 async,ppp,info era: reseting link... - could not acquire serial port
01:00:25 async,ppp,info era: disconnected
01:00:26 async,ppp,info era: initializing...
01:00:26 async,ppp,info era: reseting link...
01:00:26 async,ppp,info era: reseting link... - could not acquire serial port
01:00:26 async,ppp,info era: disconnected
01:00:26 async,ppp,info era: initializing...
01:00:26 async,ppp,info era: reseting link...
01:00:27 async,ppp,info era: reseting link... - could not acquire serial port
01:00:27 async,ppp,info era: disconnected
01:00:27 interface,info ether1 link up (speed 100M, full duplex)
01:00:28 async,ppp,info era: initializing...
01:00:28 async,ppp,info era: reseting link...
01:00:28 async,ppp,info era: reseting link... - could not acquire serial port
01:00:28 async,ppp,info era: disconnected
01:00:31 async,ppp,info era: initializing...
01:00:31 async,ppp,info era: reseting link...
01:00:31 async,ppp,info era: reseting link... - could not acquire serial port
01:00:31 async,ppp,info era: disconnected
01:00:38 async,ppp,info era: initializing...
01:00:38 async,ppp,info era: reseting link...
01:00:38 async,ppp,info era: reseting link... - could not acquire serial port
01:00:38 async,ppp,info era: disconnected
01:00:48 async,ppp,info era: initializing...
01:00:48 async,ppp,info era: reseting link...
01:00:48 async,ppp,info era: reseting link... - could not acquire serial port
01:00:48 async,ppp,info era: disconnected
01:00:57 system,info,account user admin logged in from 192.168.2.5 via winbox
01:00:58 async,ppp,info era: initializing...
01:00:58 async,ppp,info era: reseting link...
01:00:58 async,ppp,info era: reseting link... - could not acquire serial port
01:00:58 async,ppp,info era: disconnected
01:01:08 system,info,account user admin logged in from 192.168.2.5 via telnet
01:01:08 async,ppp,info era: initializing...
01:01:08 async,ppp,info era: reseting link...
01:01:08 async,ppp,info era: reseting link... - could not acquire serial port
01:01:08 async,ppp,info era: disconnected
01:01:18 async,ppp,info era: initializing...
01:01:18 async,ppp,info era: reseting link...
01:01:18 async,ppp,info era: reseting link... - could not acquire serial port
01:01:18 async,ppp,info era: disconnected

My configuration PPP (after restart):

[admin@MikroTik] /interface ppp-client> print
Flags: X - disabled, R - running 
 0    name="era" max-mtu=1500 max-mru=1500 mrru=disabled port=usb2 data-channel=2 info-channel=2 apn="eradata" pin="" user="" password="" profile=default phone="*99#" 
      dial-command="ATDT" modem-init="" null-modem=no dial-on-demand=no add-default-route=yes use-peer-dns=yes keepalive-timeout=30 allow=pap,chap,mschap1,mschap2

My configuration ports (after restart):

[admin@MikroTik] > port print
Flags: I - inactive 
 #   NAME                                                                       CHANNELS USED-BY                                                                    BAUD-RATE
 0   serial0                                                                           1 Serial Console                                                             auto     
 1   usb2                                                                              2                                                                            9600

After Restart RB all settings PPP seems correct ( the same before restart), I can see the difference in the ports configuraftions.

What to do to get rid of the problem?
export-before-restart.txt (14.3 KB)
export-after-restart.txt (14.3 KB)
Please help Me.
Paul

2

Ha ha ha , leaved alone by Mikrotik? Ya, this is actual in 2016 year too: RB951G and E3276s 4G card - dances with drums - sometimes work sometimes no.
Old D-Link Dir-320 with custom firmware work with this card without problems. I still have perverted interest to Mikrotik because of price/posibilities…
After long researches I found Mikrotik hardware problem - not enough power on USB port. Problems was solved when powered USB hub was used…

3

I was trying to connect a Huawei E3372 LTE modem. I used the mikrotik microusb to usb cable that came with the RB2011 router.

I can confirm this was a power issue. I was using RB2011 with a 5v 0.8a power.
Changed to 5v 1.2a power, still same issue.

Changed to a RB3011 with the 5v, 1.2a power - and plugged device straight into usb-a port instead of the usb micro port on the rb2011. - everything works as expected!