I don’t see problem on FW R13.3, maybe you can give a try:
[ 31.893645] usb 3-2.1: Product: Sierra Wireless WP7605
[ 31.893646] usb 3-2.1: Manufacturer: Sierra Wireless, Incorporated
[ 31.893647] usb 3-2.1: SerialNumber: 2A91728507040403
[ 32.110089] GobiNet: loading out-of-tree module taints kernel.
[ 32.110154] GobiNet: module verification failed: signature and/or required key missing - tainting kernel
[ 32.142825] GobiNet: 2018-03-22/SWI_2.51
[ 32.142884] QMAP Disabled
[ 32.151310] GobiNet 3-2.1:1.8 eth0: register ‘GobiNet’ at usb-0000:03:00.0-2.1, GobiNet Ethernet Device, 36:dd:7e:ff:24:d7
[ 32.172837] USB Speed : USB 2.0
[ 32.174030] usbcore: registered new interface driver GobiNet
[ 32.202296] usbcore: registered new interface driver usbserial
[ 32.204503] usbcore: registered new interface driver usbserial_generic
[ 32.204591] usbserial: USB Serial support registered for generic
[ 32.206290] cdc_ether 3-2.1:1.19 usb0: register ‘cdc_ether’ at usb-0000:03:00.0-2.1, CDC Ethernet Device, 16:92:dd:cc:0e:a8
[ 32.221472] usbcore: registered new interface driver cdc_ether
[ 32.232679] usbcore: registered new interface driver GobiSerial
[ 32.232689] usbserial: USB Serial support registered for GobiSerial
[ 32.236727] GobiSerial 3-2.1:1.0: GobiSerial converter detected
[ 32.236832] usb 3-2.1: GobiSerial converter now attached to ttyUSB0
[ 32.237620] GobiSerial 3-2.1:1.2: GobiSerial converter detected
[ 32.241739] usb 3-2.1: GobiSerial converter now attached to ttyUSB1
[ 32.260773] GobiSerial 3-2.1:1.3: GobiSerial converter detected
[ 32.260849] usb 3-2.1: GobiSerial converter now attached to ttyUSB2
[ 32.261319] GobiSerial: 2018-04-25/SWI_2.32:GobiSerial
[ 32.350904] cdc_ether 3-2.1:1.19 ens160u2u1i19: renamed from usb0
[ 32.365020] GobiNet 3-2.1:1.8 ens160u2u1i8: renamed from eth0
[ 32.491089] IPv6: ADDRCONF(NETDEV_UP): ens160u2u1i8: link is not ready
[ 32.491185] GobiNet 3-2.1:1.8 ens160u2u1i8: kevent 12 may have been dropped
[ 32.491189] IPv6: ADDRCONF(NETDEV_UP): ens160u2u1i8: link is not ready
[ 32.523591] IPv6: ADDRCONF(NETDEV_UP): ens160u2u1i19: link is not ready
[ 32.527316] IPv6: ADDRCONF(NETDEV_UP): ens160u2u1i19: link is not ready
[ 32.528611] IPv6: ADDRCONF(NETDEV_CHANGE): ens160u2u1i19: link becomes ready
[ 32.528617] cdc_ether 3-2.1:1.19 ens160u2u1i19: kevent 12 may have been dropped
[ 32.963468] rfkill: input handler disabled
[ 33.824955] cdc_ether 3-2.1:1.19 ens160u2u1i19: kevent 12 may have been dropped
[ 35.925381] cdc_ether 3-2.1:1.19 ens160u2u1i19: kevent 12 may have been dropped
[ 38.624112] creating qcqmi0
[ 38.624172] RawIP mode
owner@ubuntu:~ sudo dhclient ens160u2u1i8
owner@ubuntu:~ ifconfig ens160u2u1i8
ens160u2u1i8: flags=4291<UP,BROADCAST,RUNNING,NOARP,MULTICAST> mtu 1500
inet 10.104.161.217 netmask 255.255.255.252 broadcast 10.104.161.219
inet6 fe80::6da8:4306:4f87:c21d prefixlen 64 scopeid 0x20
ether 7e:3f:69:b0:de:d6 txqueuelen 1000 (Ethernet)
RX packets 56 bytes 14251 (14.2 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 187 bytes 19236 (19.2 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
owner@ubuntu:~$ ping www.google.com
PING www.google.com (216.58.221.228) 56(84) bytes of data.
64 bytes from hkg07s21-in-f228.1e100.net (216.58.221.228): icmp_seq=1 ttl=117 time=26.0 ms
64 bytes from hkg07s21-in-f228.1e100.net (216.58.221.228): icmp_seq=2 ttl=117 time=45.2 ms
^C
— www.google.com ping statistics —
2 packets transmitted, 2 received, 0% packet loss, time 1002ms
rtt min/avg/max/mdev = 26.022/35.640/45.259/9.620 ms
ati3
Manufacturer: Sierra Wireless, Incorporated
Model: WP7605
Revision: SWI9X07Y_02.28.03.05 000000 jenkins 2019/07/08 11:04:16
IMEI: 353532100020465
IMEI SV: 6
FSN: 2A917285070404
+GCAP: +CGSM
OK
at+Cgdcont?
+CGDCONT: 1,“IP”,“hkcsl”,“0.0.0.0”,0,0,0,0
+CGDCONT: 2,“IP”,“hkcsl”,“0.0.0.0”,0,0,0,0
OK
at!gstatus?
!GSTATUS:
Current Time: 104 Temperature: 28
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 1 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: UNKNOWN IMS mode: Not Support
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
LTE band: B3 LTE bw: 10 MHz
LTE Rx chan: 1851 LTE Tx chan: 19851
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Idle
PCC RxM RSSI: -59 RSRP (dBm): -86
PCC RxD RSSI: -96 RSRP (dBm): -131
Tx Power: 0 TAC: 0652 (1618)
RSRQ (dB): -10 Cell ID: 01A1560B (27350539)
SINR (dB): 8.2
OK
at!scact=1,1
OK
at!scact?
!SCACT: 1,1
!SCACT: 2,0
OK
at+Cgpaddr
+CGPADDR: 1,10.104.161.217
+CGPADDR: 2,0.0.0.0
OK