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Share network of Android mobile phone to the router (USB 3G tethering)

Discussion in 'ASUS N Routers & Adapters' started by TeHashX, Jan 24, 2013.

  1. TeHashX

    TeHashX Very Senior Member

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    Posted on Asus RT-N66U FAQ
    Should be included with 3.0.0.4.268 firmware (not yet available) maybe on v3.0.0.4.321 beta?


    Using 3G/4G Tethering allows sharing the Internet connection of Internet-connected mobile phone with other devices connect to the router. Insert the phone with router through USB cable, connection of other devices connected to the router with the phone can be done over wired LAN/wireless LAN (Wi-Fi). The combination of Internet-connected mobile phone and the router thus act as a portable wireless access point for devices connected to it. Noticed that if you connect both WAN and the mobile phone, the default is using WAN to Internet while failover is the mobile phone.

    Step1. Mobile phone settings (Android)
    Before continuing, you will need to set up your mobile phone;
    1. Setting up USB PC connection as Media device (MTP) mode.

    [​IMG]

    2. Enable USB Tethering: Settings→More settings→Tethering and portable hotspot→Enable USB tethering

    [​IMG]

    Step2. Router settings
    Connect the Android mobile to the router; you will need to set up:
    A. Connect LAN to your computer.
    B. Update the firmware to version 3.0.0.4.268 or later.
    C. Connect mobile device and router via USB port. When use 4G/LTE, using the USB extension cable to have at least 50 cm distance between the router and the mobile for best performance.

    [​IMG]

    D. Now using your Android mobile phone as 3G/4G USB modem is working. Launch the setting page http://192.168.1.1, Network Map status is changed.

    [​IMG]
     
    Last edited: Jan 25, 2013
    DTS likes this.
  2. got_milk

    got_milk Regular Contributor

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    That's really cool. I'm looking forward to playing with that when it releases.
     
  3. DTS

    DTS New Around Here

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    Now that it is 2015, which Asus (or other brand) routers support this? When I checked the Asus FAQ for the RT AC87U it lists only 8 supported devices; none are phones. So, will a phone work anyway? Which is the best Asus router for this feature?
     
  4. RMerlin

    RMerlin Part of the Furniture

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    That FAQ only lists modems. Android tethering is a separate feature, which should have been working for years now as the first post of this thread indicates.
     
    DTS likes this.
  5. DTS

    DTS New Around Here

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    Thanks...

    Here are my core questions that remain unanswered. I've been reading a lot of forums, but I haven't been able to connect all the dots. I'm sure I'm just not seeing the forest for the trees ;-)
    1. Which Asus (or other brand) routers support using a 4G phone as the WAN connection?
    2. Will the RT AC68U support using a 4G phone as the WAN connection out of the box? Is it as simple as the first post of this thread (minus the firmware update)?
    3. Same question for the RT AC87U...
    4. Do all recent versions of dd-wrt support this?
    5. What are the steps for getting this working with dd-wrt? (I assume you'll probably tell me that the last question belongs on the dd-wrt forum, but I already asked it there and got no reply.)
    Thanks
     
  6. RMerlin

    RMerlin Part of the Furniture

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    All modern Asus routers share the same firmware, so they will all have the same USB modem support, from the RT-N66U up to the RT-AC3200.

    It's impossible to predict if your particular phone will work or not, as manufacturers tend to do a lot of customizations, and sometimes carriers themselves get involved in ensuring that a device cannot be used for tethering (as they would rather see you pay for a separate connection).
     
    DTS and sfx2000 like this.
  7. DTS

    DTS New Around Here

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    Thanks for answering. In my case I pay for tethering on my phone and it has that capacity without requiring any 3rd party apps. (It is a T-Mobile LG G3.) So I should be fine with any new Asus router. I'll pick one that has good dd-wrt support (maybe the AC68U).

    Do you happen to know anything about enabling this functionality when using dd-wrt? Ultimately, I want to run dd-wrt if I can have the feature described in the first post of this thread.

    I appreciate your replies. I'm not getting replies yet elsewhere.
     
  8. RMerlin

    RMerlin Part of the Furniture

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    No idea, I haven't used DD-WRT for years (and I've never tried to tether a phone on any firmware at all - until recently my plan was giving me a mere 200 MB of monthly bandwidth anyway).
     
  9. pontus karlsson

    pontus karlsson New Around Here

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    Sorry for grave digging such an old thread. I got a samsung galaxy s5 and according to this list. the previous models of galaxy have been supported for mobile tethering.
    Do you guys think it would work to mobile usb tethering from a galaxy s5 with 4G to a "Asus RT-AC51U" as an example? or what router would you suggest that I get?
     
  10. kya kruu

    kya kruu New Around Here

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    Do you happen to know anything about enabling this functionality when using dd-wrt? Ultimately, I want to run dd-wrt if I can have the feature described in the first post of this thread.



    GuL
     
  11. wavelet

    wavelet New Around Here

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    Yes, I believe it will work. My usual Internet connection is through my landline phone line's VDSL, connected via VDSL modem to an Asus RT-N66U's Ethernet WAN port.
    My landline is temporarily down, so I was looking for a solution, and got the above working fine, using my Samsung phone as the tethered Internet connection via the Asus's USB port. Since Asus firmware has changed in the last 3 years, it needed a lot of additional trial and error; I'm therefore attaching some relevant screenshots which will hopefully help others.

    First the background details:
    Phone: Samsung S5 Plus, model SM-G901F . This is a very small update to the S5, so I'm pretty sure there'll be no difference in how it works via the non-Plus S5.
    Phone OS: Android 5.0.2 (Stock Samsung TouchWiz firmware)

    Router: Asus RT-N66U
    Router firmware: 3.0.0.4.378_9313

    This is how I did it:
    1) Plug phone using its standard micro-USB to USB cable into USB port on router (I think it doesn't matter which one)
    2) On the phone Settings menu, Network Connections section, select the "Tethering and Mobile hotspot" subsection.
    3) The "USB Tethering" setting, which is grayed out if you're not connected via USB, should now be selectable. Select it. It should look like this:
    Samsung S5+ USB Tethering screen.png
    4) Physically disconnect the Ethernet cable to the router's WAN's port from the landline modem, if it was connected. I don't think this is supposed to be necessary, but it didn't work for me otherwise.
    5) Open a browser to the router's main "Network Map" status page. Note that there are now two WAN connections listed on top, vs. one previously, and that one of the USB ports is showing an icon of a USB wireless dongle, with a "SAMSUNG_Android" device: Asus tethered to Android phone as USB modem- Network Map image.jpg :
    (continued in next post)
     
  12. wavelet

    wavelet New Around Here

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    (continued from prev. post):
    6) Click the dongle icon. You will get the following screen:
    Asus tethered to Android phone as USB modem- after pressing the modem's icon in map.jpg
    7) Now press the "GO" button to setup the modem, you will see the following:
    Asus tethered to Android phone as USB modem- after pressing the "GO" button.jpg
    8) Now set it up like it says:
    -- Set WAN type to USB
    -- Set Enable USB Mode to ON
    -- Make sure the USB Device is set to Android phone
    -- I left the USB MTU setting alone.

    9) Press the "Apply" button and wait until the router's done with the change.

    As far as I can tell, once you're done using the phone as Internet tether and want to go back to the Ethernet-port WAN connection, there's no need to change anything in the router settings -- just unplug the phone from the router.
    In fact, while I haven't tested it, the router is now supposed to support automatic failover switching between connections and even load balancing (click the "Dual WAN" tab in the above photo to see the options).
     
  13. greenflash

    greenflash New Around Here

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    This is the solution I didn't think of (my ADSL internet fails a lot in my area and was wracking my brain about the adequate USB dongle, the cost etc) and it's great!! Thanks a lot. Using it now with Nexus 6P over 4G. Awesome (my 4G is ten times faster than my 1.5MB ADSL.. Go figure!). PS: I'm writing connected via my phone 4G in my Windows computer!
     
  14. blautens

    blautens New Around Here

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    Thanks - RT-AC66U - firmware 3.0.0.4.378_9533 - I had to perservere a bit more, but your documents helped. I set mine for Enable USB Mode - On, Android Phone, and left the USB MTU at 0.

    My Samsung S6 only has choices for Hotspot or Tethering, and the Tethering option would turn itself off all the time (you couldn't even enable it if the cable wasn't plugged in). Also, I couldn't get the Dual WAN feature with failover/failback to work on the Asus router (which seemed awfully cool), and I also had to unplug the WAN Ethernet cable to get it to work.

    The odd thing was that when I finally plugged in the USB connector in the bottom connector of the router, it finally stabilized and no longer turned off the tethering option on the phone.

    So I'm left with a simple USB Android connection, but 12Mbs beats nothing at all during the Comcast outage I'm suffering through right now.

    If only that dual WAN failover/failback with aggregation thing worked...reminds me of back in the day when I used to use an Astrocom PowerLink to aggregate 4 different links in and out - that thing was nice.
     

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