Sprint Netgear 341U (LTE modem dongle) with AC68U?

[chippey]

Hello!
I searched the forum, but nothing came up for 341U, so I thought I'd post asking:
Has anyone gotten a Netgeaur 341U LTE dongle to work with an AC68U router?
(For background, I'm running asuswrt-merlin 376.49_4 )

Here's what I've attempting so far without success:

-Tried out-of-the box, just plugging in hoping that the usb_wwan kernel module might work (nope).
-Tried compiling the GobiNet and GobiSerial (obtained from here: http://support.netgear.com/product/AirCard+341U+$28Sprint$29 ) kernel modules, and still no luck.

More on my adventures with the Gobi* kernel modules:
After compiling, I copied them to the /jffs partition, and loaded them with insmod. After they were loaded, I plugged in the dongle, but it still attempted to register with the usb_wwan module. So I unloaded the usb_wwan module with modprobe -r, and finally the dongle did register with the GobiNet module and gave me a usb0 net interface, but was unable to aquire an ip from the modem dongle. (It incorrectly got something on 10.0.0.0 net, but the modem should have given it something on 192.168.3.0 (the modem was in a mode that has a built in nat)). Statically setting the address into something in the correct range didn't work either - no communication with the dongle.

I also tried it with the 341U in it's 'ip passthrough mode' (which exposes two net interfaces), but had the same issues with it correctly aquiring addresses.

On a side note, I know the modem dongle does work correctly - I sucessfully built the same Gobi* kernel modules for my laptop with is running Linux Mint 17, and everything works great there, I just cannot get it to work with the AC68U running asuswrt-merlin 376.49_4, with either the Gobi* kernel module drivers, or the built-in usb_wwan, in either of the modem's modes.

Has anyone one out there gotten this modem dongle to work with their router, or have ideas what else to try?

Cheers!

 

[waltersmith]

I struggled through this with different 4G dongles and Androids on ASUS routers for years. I'm pretty sure there is no reasonable way to use a 3G/4G device in any sort of reliable full uptime or automated fail over scenario with any Asus router on any version of firmware.

My solution was to demote my ASUS to AP mode and use as my primary router a lower cost higher quality router that 100% supports 4G as primary or backup WAN. Haven't had to touch anything since I set that up six months ago.

 

[chippey]

Yeah, I'm hoping not to have to go that route.

Been using a 3G dongle for quite some time now with the ac68u, and it's been working flawlessly, but I'm trying to upgrade to use a 4G connection now, and sadly it looks like the 341U dongle is the only thing available from Sprint.


On further investigation, it looks like something is causing the Gobi* drives to unload?

usb 2-2: new high speed USB device using ehci_hcd and address 5
usb 2-2: config 1 has an invalid interface number: 8 but max is 3
usb 2-2: config 1 has no interface number 1
GobiSerial 2-2:1.2: GobiSerial converter detected
usb 2-2: GobiSerial converter now attached to ttyUSB0
GobiSerial 2-2:1.3: GobiSerial converter detected
usb 2-2: GobiSerial converter now attached to ttyUSB1
GobiNet 2-2:1.8: usb0: register 'GobiNet' at usb-0000:00:0b.1-2, GobiNet Ethernet Device, b6:50:d9:22:2d:43
creating qcqmi0
GobiSerial 2-2:1.0: GobiSerial converter detected
usb 2-2: GobiSerial converter now attached to ttyUSB2
USB Serial support registered for GSM modem (1-port)
usbcore: registered new interface driver option
option: v0.7.2:USB Driver for GSM modems
ehci_hcd 0000:00:0b.1: force halt; handshake d21e8014 00004000 00000000 -> -110
ehci_hcd 0000:00:0b.1: HC died; cleaning up
usb 2-2: USB disconnect, address 5
GobiSerial driver ttyUSB0: GobiSerial converter now disconnected from ttyUSB0
GobiSerial 2-2:1.2: device disconnected
GobiSerial driver ttyUSB1: GobiSerial converter now disconnected from ttyUSB1
GobiSerial 2-2:1.3: device disconnected
GobiNet 2-2:1.8: usb0: unregister 'GobiNet' usb-0000:00:0b.1-2, GobiNet Ethernet Device
GobiSerial driver ttyUSB2: GobiSerial converter now disconnected from ttyUSB2
GobiSerial 2-2:1.0: device disconnected
usbcore: deregistering interface driver option
USB Serial deregistering driver GSM modem (1-port)
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
ADDRCONF(NETDEV_UP): tun21: link is not ready
device tun21 entered promiscuous mode
ADDRCONF(NETDEV_CHANGE): tun21: link becomes ready