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Hi. I am trying to use a 3G usb Dongle Alcatel X602A. When I run lsusb I've got this: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 058f:6254 Alcor Micro Corp. USB Hub Bus 001 Device 003: ID 0bda:8187 Realtek Semiconductor Corp. RTL8187 Wireless Adapter Bus 001 Device 006: ID 1bbb:022c T & A Mobile Phones Bus 001 Device 005: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader It's recognized as Bus 001 Device 006: ID 1bbb:022c T & A Mobile Phones I've checked the usb-modeswitch-data package and it show the 1bbb:022c file with the following info (i've downloaded the tar from the website): #Alcatel X602D Configuration=2 Then I cheked in /etc/usb_modeswitch.d/ in my router but the file 1bbb:022c was missing, so I've created the file with the info above mentioned. Now when I run the lsusb I've got the same but if i run dmesg I get: [ 22.170000] scsi 2:0:0:0: CD-ROM USBModem Mass Storage 2.31 PQ: 0 ANSI: 2 [ 38.240000] usbcore: registered new interface driver cdc_acm [ 38.250000] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters [ 38.470000] usbcore: registered new interface driver usbserial [ 38.480000] USB Serial support registered for generic [ 38.480000] usbcore: registered new interface driver usbserial_generic [ 38.490000] usbserial: USB Serial Driver core [ 38.630000] usbcore: registered new interface driver asix [ 38.710000] usbcore: registered new interface driver cdc_ether [ 38.950000] Error: Driver 'gpio-keys-polled' is already registered, aborting... [ 39.050000] usbcore: registered new interface driver rndis_host [ 39.160000] sd 1:0:0:0: Attached scsi generic sg0 type 0 [ 39.170000] scsi 2:0:0:0: Attached scsi generic sg1 type 5 [ 39.190000] USB Serial support registered for GSM modem (1-port) [ 39.200000] usbcore: registered new interface driver option [ 39.200000] option: v0.7.2:USB Driver for GSM modems Also, when I run cat /proc/bus/usb/devices I get this: T: Bus=01 Lev=02 Prnt=02 Port=01 Cnt=02 Dev#= 6 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 2 P: Vendor=1bbb ProdID=022c Rev= 0.00 S: Manufacturer=SCD S: Product=HSPA+ USB Modem C: #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=250mA I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver= E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=125us C:* #Ifs= 4 Cfg#= 2 Atr=80 MxPwr=200mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=125us I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=125us I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=125us I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=125us I am a bit lost, I don't know if the 3g dongle was properly switched and to which /dev/ was attached? What i am missing? Thanks in advance for any guidance.

Hi All, I've worked a lot on this, and have come so far that that the dongle connects. But it only lasts briefly, because it disconnects just after connect. I've tried everything, and I hope someone here can verify my configuration. This is the interesting part of /pineapple/3g/3g.sh: *19d2:0167*|*19d2:0167*) echo "ZTE MF820D (Telia) detected. Attempting mode switch" uci delete network.wan2 uci set network.wan2=interface uci set network.wan2.ifname=ppp0 uci set network.wan2.proto=3g uci set network.wan2.service=umts uci set network.wan2.device=/dev/ttyUSB2 uci set network.wan2.apn=www.internet.mtelia.dk uci set network.wan2.username= uci set network.wan2.password= uci set network.wan2.defaultroute=1 uci commit network echo "Usb modeswitch" usb_modeswitch -v 19d2 -p 0166 -V 19d2 -P 0167 -M 55534243123456782400000080000685000000240000000000000000000000 -m 0x01 -n 0 -s 20 echo "Removing usbserial mod" sleep 10; rmmod usbserial echo "Inseting usbserial mod" sleep 3; insmod usbserial vendor=0x19d2 product=0x0167 # sleep 5; /etc/init.d/firewall disable; /etc/init.d/firewall stop # logger "3G: firewall stopped" echo "Setting up iptables" iptables -t nat -A POSTROUTING -s 172.16.42.0/24 -o 3g-wan2 -j MASQUERADE iptables -A FORWARD -s 172.16.42.0/24 -o 3g-wan2 -j ACCEPT iptables -A FORWARD -d 172.16.42.0/24 -m state --state ESTABLISHED,RELATED -i 3g-wan2 -j ACCEPT ;; I've removed the firewall part as it fails anyways. This is /etc/chatscripts/3g.chat: ABORT BUSY ABORT 'NO CARRIER' ABORT ERROR REPORT CONNECT TIMEOUT 10 "" "AT&F" OK "ATE1" OK 'AT+CGDCONT=1,"IP","$USE_APN"' ABORT 'NO CARRIER' OK "AT+ZSNT=0,0,0" SAY "Calling UMTS/GPRS" TIMEOUT 20 OK "ATD*99#" CONNECT ' ' And lastly here is the interesting part of /etc/config/network: config interface 'wan2' option ifname 'ppp0' option proto '3g' option service 'umts' option device '/dev/ttyUSB2' option apn 'www.internet.mtelia.dk' option defaultroute '1' Probably as part of the new pineapple firmware, the dongle does a modechange, which took me a while to see. So this happens automaticly at bootup: Jan 1 00:00:41 Pineapple user.notice usb-modeswitch: 1-0:1.0: Manufacturer=Linux_3.7.9_ehci_hcd Product=Generic_Platform_EHCI_Controller Serial=ehci-platform Jan 1 00:00:41 Pineapple user.notice usb-modeswitch: 1-1:1.0: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:00:42 Pineapple user.notice usb-modeswitch: 1-1:1.1: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:00:42 Pineapple user.notice usb-modeswitch: 1-1:1.2: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:00:42 Pineapple user.notice usb-modeswitch: 1-1:1.3: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:00:42 Pineapple user.notice usb-modeswitch: 1-1:1.4: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? And the lsusb -v looks like this: Bus 001 Device 003: ID 19d2:0167 ZTE WCDMA Technologies MSM Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x19d2 ZTE WCDMA Technologies MSM idProduct 0x0167 bcdDevice 0.00 iManufacturer 3 ZTE,Incorporated iProduct 2 ZTE LTE Technologies MSM iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 138 bNumInterfaces 5 bConfigurationValue 1 iConfiguration 1 ZTE Configuration bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 3 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x84 EP 4 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 5 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x85 EP 5 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 4 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 255 Vendor Specific Protocol iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x86 EP 6 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 5 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x87 EP 7 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x05 EP 5 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 32 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0000 (Bus Powered) Here is how the log looks just after i run my 3g.sh script: Jan 1 00:06:01 Pineapple user.notice root: 3G: Connection Script here, searching for modems Jan 1 00:06:13 Pineapple kern.info kernel: [ 373.150000] usbserial: USB Serial deregistering driver generic Jan 1 00:06:13 Pineapple kern.info kernel: [ 373.160000] usbcore: deregistering interface driver usbserial_generic Jan 1 00:06:13 Pineapple kern.info kernel: [ 373.160000] usbcore: deregistering interface driver usbserial Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.210000] usbcore: registered new interface driver usbserial Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.210000] usbcore: registered new interface driver usbserial_generic Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.220000] usbserial: USB Serial support registered for generic Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.220000] usbserial_generic 1-1:1.0: The "generic" usb-serial driver is only for testing and one-off prototypes. Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.230000] usbserial_generic 1-1:1.0: Tell linux-usb@vger.kernel.org to add your device to a proper driver. Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.240000] usbserial_generic 1-1:1.0: generic converter detected Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.250000] usb 1-1: generic converter now attached to ttyUSB0 Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.260000] usbserial_generic 1-1:1.1: The "generic" usb-serial driver is only for testing and one-off prototypes. Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.270000] usbserial_generic 1-1:1.1: Tell linux-usb@vger.kernel.org to add your device to a proper driver. Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.280000] usbserial_generic 1-1:1.1: generic converter detected Jan 1 00:06:16 Pineapple kern.info kernel: [ 376.280000] usb 1-1: generic converter now attached to ttyUSB1 Jan 1 00:06:19 Pineapple daemon.notice pppd[1855]: pppd 2.4.5 started by root, uid 0 Jan 1 00:06:20 Pineapple local2.info chat[1859]: abort on (BUSY) Jan 1 00:06:20 Pineapple local2.info chat[1859]: abort on (NO CARRIER) Jan 1 00:06:20 Pineapple local2.info chat[1859]: abort on (ERROR) Jan 1 00:06:20 Pineapple local2.info chat[1859]: report (CONNECT) Jan 1 00:06:20 Pineapple local2.info chat[1859]: timeout set to 10 seconds Jan 1 00:06:20 Pineapple local2.info chat[1859]: send (AT&F^M) Jan 1 00:06:20 Pineapple local2.info chat[1859]: expect (OK) Jan 1 00:06:20 Pineapple local2.info chat[1859]: AT&F^M^M Jan 1 00:06:20 Pineapple local2.info chat[1859]: OK Jan 1 00:06:20 Pineapple local2.info chat[1859]: -- got it Jan 1 00:06:20 Pineapple local2.info chat[1859]: send (ATE1^M) Jan 1 00:06:20 Pineapple local2.info chat[1859]: expect (OK) Jan 1 00:06:20 Pineapple local2.info chat[1859]: ^M Jan 1 00:06:20 Pineapple local2.info chat[1859]: ATE1^M^M Jan 1 00:06:20 Pineapple local2.info chat[1859]: OK Jan 1 00:06:20 Pineapple local2.info chat[1859]: -- got it Jan 1 00:06:20 Pineapple local2.info chat[1859]: send (AT+CGDCONT=1,"IP","www.internet.mtelia.dk"^M) Jan 1 00:06:21 Pineapple local2.info chat[1859]: abort on (NO CARRIER) Jan 1 00:06:21 Pineapple local2.info chat[1859]: expect (OK) Jan 1 00:06:21 Pineapple local2.info chat[1859]: ^M Jan 1 00:06:21 Pineapple local2.info chat[1859]: AT+CGDCONT=1,"IP","www.internet.mtelia.dk"^M^M Jan 1 00:06:21 Pineapple local2.info chat[1859]: OK Jan 1 00:06:21 Pineapple local2.info chat[1859]: -- got it Jan 1 00:06:21 Pineapple local2.info chat[1859]: send (AT+ZSNT=0,0,0^M) Jan 1 00:06:21 Pineapple local2.info chat[1859]: timeout set to 20 seconds Jan 1 00:06:21 Pineapple local2.info chat[1859]: expect (OK) Jan 1 00:06:21 Pineapple local2.info chat[1859]: ^M Jan 1 00:06:21 Pineapple local2.info chat[1859]: AT+ZSNT=0,0,0^M^M Jan 1 00:06:21 Pineapple local2.info chat[1859]: OK Jan 1 00:06:21 Pineapple local2.info chat[1859]: -- got it Jan 1 00:06:21 Pineapple local2.info chat[1859]: send (ATD*99#^M) Jan 1 00:06:21 Pineapple local2.info chat[1859]: expect (CONNECT) Jan 1 00:06:21 Pineapple local2.info chat[1859]: ^M Jan 1 00:06:21 Pineapple local2.info chat[1859]: ATD*99#^M^M Jan 1 00:06:21 Pineapple local2.info chat[1859]: CONNECT Jan 1 00:06:21 Pineapple local2.info chat[1859]: -- got it Jan 1 00:06:21 Pineapple local2.info chat[1859]: send ( ^M) Jan 1 00:06:21 Pineapple daemon.info pppd[1855]: Serial connection established. Jan 1 00:06:21 Pineapple daemon.info pppd[1855]: Using interface 3g-wan2 Jan 1 00:06:21 Pineapple daemon.notice pppd[1855]: Connect: 3g-wan2 <--> /dev/ttyUSB2 Jan 1 00:06:22 Pineapple daemon.warn pppd[1855]: Could not determine remote IP address: defaulting to 10.64.64.64 Jan 1 00:06:22 Pineapple daemon.notice pppd[1855]: local IP address 10.234.118.8 Jan 1 00:06:22 Pineapple daemon.notice pppd[1855]: remote IP address 10.64.64.64 Jan 1 00:06:22 Pineapple daemon.notice pppd[1855]: primary DNS address 62.44.166.197 Jan 1 00:06:22 Pineapple daemon.notice pppd[1855]: secondary DNS address 62.44.166.69 Jan 1 00:06:22 Pineapple daemon.notice netifd: Interface 'wan2' is now up Jan 1 00:06:24 Pineapple daemon.info dnsmasq[1534]: reading /tmp/resolv.conf.auto Jan 1 00:06:24 Pineapple daemon.info dnsmasq[1534]: using nameserver 62.44.166.197#53 Jan 1 00:06:24 Pineapple daemon.info dnsmasq[1534]: using nameserver 62.44.166.69#53 Jan 1 00:06:24 Pineapple daemon.info dnsmasq[1534]: using nameserver 8.8.8.8#53 Jan 1 00:06:24 Pineapple daemon.info dnsmasq[1534]: using local addresses only for domain lan Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.950000] usb 1-1: USB disconnect, device number 3 Jan 1 00:06:25 Pineapple daemon.notice pppd[1855]: Modem hangup Jan 1 00:06:25 Pineapple daemon.info pppd[1855]: Connect time 0.1 minutes. Jan 1 00:06:25 Pineapple daemon.info pppd[1855]: Sent 204 bytes, received 0 bytes. Jan 1 00:06:25 Pineapple daemon.notice pppd[1855]: Connection terminated. Jan 1 00:06:25 Pineapple daemon.notice netifd: Interface 'wan2' has lost the connection Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.960000] generic ttyUSB0: generic converter now disconnected from ttyUSB0 Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.960000] usbserial_generic 1-1:1.0: device disconnected Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.970000] generic ttyUSB1: generic converter now disconnected from ttyUSB1 Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.980000] usbserial_generic 1-1:1.1: device disconnected Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.980000] generic ttyUSB2: generic converter now disconnected from ttyUSB2 Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.990000] usbserial_generic 1-1:1.2: device disconnected Jan 1 00:06:25 Pineapple kern.info kernel: [ 384.990000] generic ttyUSB3: generic converter now disconnected from ttyUSB3 Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.000000] usbserial_generic 1-1:1.3: device disconnected Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.010000] generic ttyUSB4: generic converter now disconnected from ttyUSB4 Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.010000] usbserial_generic 1-1:1.4: device disconnected Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.300000] usb 1-1: new high-speed USB device number 4 using ehci-platform Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.450000] usbserial_generic 1-1:1.0: The "generic" usb-serial driver is only for testing and one-off prototypes. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.460000] usbserial_generic 1-1:1.0: Tell linux-usb@vger.kernel.org to add your device to a proper driver. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.470000] usbserial_generic 1-1:1.0: generic converter detected Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.480000] usb 1-1: generic converter now attached to ttyUSB0 Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.480000] usbserial_generic 1-1:1.1: The "generic" usb-serial driver is only for testing and one-off prototypes. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.490000] usbserial_generic 1-1:1.1: Tell linux-usb@vger.kernel.org to add your device to a proper driver. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.500000] usbserial_generic 1-1:1.1: generic converter detected Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.510000] usb 1-1: generic converter now attached to ttyUSB1 Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.510000] usbserial_generic 1-1:1.2: The "generic" usb-serial driver is only for testing and one-off prototypes. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.520000] usbserial_generic 1-1:1.2: Tell linux-usb@vger.kernel.org to add your device to a proper driver. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.530000] usbserial_generic 1-1:1.2: generic converter detected Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.540000] usb 1-1: generic converter now attached to ttyUSB2 Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.550000] usbserial_generic 1-1:1.3: The "generic" usb-serial driver is only for testing and one-off prototypes. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.560000] usbserial_generic 1-1:1.3: Tell linux-usb@vger.kernel.org to add your device to a proper driver. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.570000] usbserial_generic 1-1:1.3: generic converter detected Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.570000] usb 1-1: generic converter now attached to ttyUSB3 Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.580000] usbserial_generic 1-1:1.4: The "generic" usb-serial driver is only for testing and one-off prototypes. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.590000] usbserial_generic 1-1:1.4: Tell linux-usb@vger.kernel.org to add your device to a proper driver. Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.600000] usbserial_generic 1-1:1.4: generic converter detected Jan 1 00:06:25 Pineapple kern.info kernel: [ 385.600000] usb 1-1: generic converter now attached to ttyUSB4 Jan 1 00:06:26 Pineapple daemon.info pppd[1855]: Terminating on signal 15 Jan 1 00:06:26 Pineapple daemon.info pppd[1855]: Exit. Jan 1 00:06:26 Pineapple daemon.notice netifd: Interface 'wan2' is now down Jan 1 00:06:27 Pineapple user.notice usb-modeswitch: 1-1:1.0: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:06:27 Pineapple user.notice usb-modeswitch: 1-1:1.1: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:06:27 Pineapple user.notice usb-modeswitch: 1-1:1.2: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:06:28 Pineapple user.notice usb-modeswitch: 1-1:1.3: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? Jan 1 00:06:28 Pineapple user.notice usb-modeswitch: 1-1:1.4: Manufacturer=ZTE,Incorporated Product=ZTE_LTE_Technologies_MSM Serial=? So for me it looks like the modem resets after disconnect (and then gets switched back again). But i have no idea what actually happened. I've tested the modem on a Mac and PC and i works fine. I'm not hundred percent sure that its /dev/ttyUSB2 I'm supposed to use, but i've tried the other ones and ttyUSB2 seems to give the least critical errors. Is there anything i've overlooked? Thanks a bunch.