Asus 4G-AC68U User manual

User Guide
4G-AC68U
Dual-Band Wireless-AC1900 LTE Modem Router

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Copyright © 2017 ASUSTeK Computer Inc. All Rights Reserved.
No part of this manual, including the products and software described
in it, may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any language in any form or by any means, except
documentation kept by the purchaser for backup purposes, without the
express written permission of ASUSTeK Computer Inc. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired,
modified or altered, unless such repair, modification of alteration is authorized
in writing by ASUS; or (2) the serial number of the product is defaced or
missing.
ASUS PROVIDES THIS MANUAL“AS IS”WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS,
EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS
AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR
PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE
FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE
AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A
COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY
FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL,
INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be
registered trademarks or copyrights of their respective companies, and are used
only for identification or explanation and to the owners’benefit, without intent
to infringe.
E13374
First Edition
August 2017

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Table of contents
1 Getting to know your wireless router
1.1 Welcome! ...........................................................................................7
1.2 Package contents............................................................................7
1.3 Your wireless router .......................................................................8
1.4 Device Properties......................................................................... 10
1.5 Positioning your router.............................................................. 11
1.6 Installing your router.................................................................. 12
1.6.1 Prepare the setup requirements......................................12
1.6.2 Set up your LTE wireless router. .......................................13
2 Getting started
2.1 Quick Internet Setup (QIS) with Auto- detection............. 15
3 Configuring the General Settings
3.1 Using the Network Map ........................................................... 20
3.1.1 Setting up the wireless security settings......................21
3.1.2 System Status .........................................................................22
3.1.3 Managing your network clients.......................................23
3.1.4 Monitoring the Internet Status ........................................25
3.1.5 Monitoring your USB device.............................................26
3.2 Guest Network.............................................................................. 27
3.3 AiProtection................................................................................... 29
3.3.1 Network Protection..............................................................30
3.3.2 Setting up Parental Controls.............................................34
3.4 Adaptive QoS ................................................................................ 38
3.4.1 Bandwidth Monitor..............................................................38
3.4.2 QoS.............................................................................................39
3.4.3 Web History.............................................................................40

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Table of contents
3.5 Traffic Analyzer ............................................................................. 41
3.6 Using the USB Application ....................................................... 42
3.6.1 Using AiDisk............................................................................42
3.6.2 Using Servers Center............................................................45
3.7 Using AiCloud 2.0 ........................................................................ 50
3.7.1 Cloud Disk................................................................................51
3.7.2 Smart Access...........................................................................52
3.7.3 Smart Sync...............................................................................53
3.7.4 Sync Server..............................................................................54
3.7.5 Settings.....................................................................................57
4 Configuring the Advanced Settings
4.1 Wireless............................................................................................ 58
4.1.1 General......................................................................................58
4.1.2 WPS ............................................................................................60
4.1.3 WDS............................................................................................62
4.1.4 Wireless MAC Filter ...............................................................64
4.1.5 RADIUS Setting .....................................................................65
4.1.6 Professional ............................................................................66
4.2 LAN.................................................................................................... 69
4.2.1 LAN IP........................................................................................69
4.2.2 DHCP Server............................................................................70
4.2.3 Route .........................................................................................72
4.2.4 IPTV ............................................................................................73
4.2.5 Switch Control........................................................................73
4.3 WAN.................................................................................................. 74
4.3.1 Internet Connection.............................................................74
4.3.2 IPv6 (Internet Settings) .......................................................83
4.3.3 Dual WAN .................................................................................84
4.3.4 Port Trigger..............................................................................85

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Table of contents
4.3.5 Virtual Server/Port Forwarding........................................87
4.3.6 DMZ............................................................................................90
4.3.7 DDNS .........................................................................................91
4.3.8 NAT Passthrough...................................................................92
4.4 IPv6 ................................................................................................... 93
4.5 VPN Server...................................................................................... 94
4.6 Firewall............................................................................................. 95
4.6.1 General......................................................................................95
4.6.2 URL Filter ..................................................................................95
4.6.3 Keyword filter .........................................................................96
4.6.4 Network Services Filter .......................................................96
4.6.5 IPv6 Firewall ............................................................................97
4.7 Administration.............................................................................. 98
4.7.1 Operation Mode....................................................................98
4.7.2 System.......................................................................................99
4.7.3 Firmware Upgrade............................................................. 101
4.7.4 Restore/Save/Upload Setting ........................................ 102
4.8 System Log...................................................................................103
4.9 Ethernet WAN Mobile Broadband Function Support List104
5 Utilities
5.1 Device Discovery........................................................................106
5.2 Firmware Restoration...............................................................107
5.3 Setting up your printer server...............................................108
5.3.1 ASUS EZ Printer Sharing .................................................. 108
5.3.2 Using LPR to Share Printer.............................................. 112
5.4 Download Master ......................................................................117
5.4.1 Configuring Bit Torrent download settings.............. 119
5.4.2 NZB settings......................................................................... 120
5.4.3 eMule settings..................................................................... 120

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6 Troubleshooting
6.1 Basic Troubleshooting..............................................................121
6.2 Frequently Asked Questions (FAQs) ...................................123
Appendices
Notices 132
ASUS Contact information..................................................................146
Networks Global Hotline Information.............................................147

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1 Getting to know your wireless
router
1.1 Welcome!
Thank you for purchasing an ASUS 4G-AC68U Wireless Router!
The powerful and stylish 4G-AC68U features 2.4GHz and 5GHz
dual bands for an unmatched concurrent wireless HD streaming;
SMB server, UPnP AV server, and FTP server for 24/7 file sharing;
a capability to handle 300,000 sessions; and the ASUS Green
Network Technology, which provides up to 70% power-saving
solution.
1.2 Package contents
NOTES:
• Ifanyoftheitemsisdamagedormissing,contactyourretaileror
ASUS for technical inquiries and support, Refer to the ASUS Support
Hotline list at the back of this user manual.
• Keeptheoriginalpackagingmaterialincaseyouwouldneedfuture
warranty services such as repair or replacement.
4G-AC68U Wireless Router AC adapter
Network cable (RJ-45) Quick Start Guide
2 x 3G/4G antennas

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1.3 Your wireless router
3G/4G signal strength LED
1 lit LED: Weak signal
2 lit LEDs: Normal signal
3 lit LEDs: Strong signal
Purple light for 3G connection, blue light for 4G connection
WPS LED
Off: WPS is not processing.
Flashing quick: WPS is processing.
USB 3.0 LED
Off: No power or no physical connection.
On: Has physical connection to USB 3.0 devices.
LAN LED
Off: No data activity or no physical connection.
On: Ethernet connection is established.

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5GHz Wi-Fi LED
Off: No 5GHz signal.
On: 5GHz wireless is ready.
Flashing: Transmitting or receiving data via wireless connection.
2.4GHz Wi-Fi LED
Off: No 2.4GHz signal.
On: 2.4GHz wireless is ready.
Flashing: Transmitting or receiving data via wireless connection.
WAN (Internet) LED
Off: No data activity or no physical connection.
On: Has physical connection to a wide area network (WAN).
Power LED
Off: No power.
On: Device is ready.
Flashing slow: Rescue mode
Flashing quick: WPS is processing.
Reset button
This button resets or restores the system to its factory default settings.
Power on/off button
Press this button to power on or off the system.
Power (DC-In) port
Insert the bundled AC adapter into this port and connect your router to a
power source.
USB 3.0 port
Insert USB 3.0 compatible devices such as USB hard disks or USB flash drives
into this port.
WAN (Internet) port
Connect a network cable into this port to establish WAN connection.
LAN (1~4) ports
Connect network cables into these ports to establish LAN connection.
WPS button
Long press the button to launch the WPS Wizard.
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Wi-Fi On/Off button
Press this button to turn on /off the Wi-Fi connection.
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Micro SIM/USIM card slot
Install a Micro SIM/USIM card into this slot to establish a Mobile Broadband
Internet connection.
18 Detachable LTE antennas
Fixed Wi-Fi antennas

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NOTES:
• Useonlytheadapterthatcamewithyourpackage.Usingother
adapters may damage the device.
• EnsuretoinserttheMicroSIM/USIMcardintothecardslotbefore
powering on the router.
1.4 Device Properties
Power Consumption:
• Input:AC100~240V/50~60Hz,DC19V/2.37A(EU)
 Input:AC100~240V/50~60Hz,DC19V/3.42A(UK)
• Maximumpowerconsumption:25.8W
• Averagepowerconsumption:10.3W
• Theaveragepowerconsumptionwasdeterminedatroom
temperature ( 23 °C to 27 °C ) with the following load:
 • ActiveMobileBroadbandconnection
 • WirelessLANon;nodevicesareconnectedtothewireless
LAN
 • OnenetworkdeviceisconnectedtoaLANport;nodata
transfer; no network devices are connected to the other
LAN ports
Ambient conditions:
DC Power adapter DC Output: +19V with max 2.37A current ;
DC Output: +19V with max 3.42A current
Operating Temperature 0~40oCStorage Temperature 0~70oC
Operating Humidity 10~90% Storage Humidity 10~90%

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1.5 Positioning your router
For the best wireless signal transmission between the wireless
router and the network devices connected to it, ensure that you:
• PlacethewirelessLTErouternearawindowtoreceivethe
bestqualityformaximumwirelessupstreamperformance
withanLTEbasestation.
• Keepthedeviceawayfrommetalobstructionsandawayfrom
directsunlight.
• Placetherouterhorizontally.
• DonotplacetheWirelessLTERouterinadustyorwet
environment.
• Topreventsignalloss,keepthedeviceawayfrom802.11g
or20MHzonlyWi-Fidevices,2.4GHzcomputerperipherals,
Bluetoothdevices,cordlessphones,transformers,heavy-duty
motors,fluorescentlights,microwaveovens,refrigerators,and
otherindustrialequipment.
• Alwaysupdatetothelatestfirmware.VisittheASUSwebsiteat
http://www.asus.com/Networking/4G-AC68U/HelpDesk_
Download/togetthelatestfirmwareupdates.
• Toensurethebestwirelesssignal,orienttheantennasas
showninthedrawingbelow.

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1.6 Installing your router
1.6.1 Prepare the setup requirements.
To set up your wireless network, you need to meet the following
requirements:
• AMicroSIM/USIMcardwithWCDMAandLTEsubscription
IMPORTANT! Ensure that your Micro SIM/USIM card is subscribed to
WCDMA and LTE services. Contact your mobile service provider about
these services.
CAUTION! Use only a standard Micro SIM/USIM card on your router.
Using a different form of SIM card type, such as mini or nano SIM card,
may result to a stuck SIM card and may damage your router.
• AnADSL/cablemodemwithInternetsubscription
• AcomputerwithEthernetRJ-45(LAN)port(10/100/1000
Base-TX) or a Wi-Fi-enabled device with a 2.4 GHz and 5 GHz
802.11 a/b/g/n/ac wireless interface
• WebbrowsersuchasInternetExplorer,Firefox,Safari,or
Google Chrome

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1.6.2 Set up your LTE wireless router.
a. Attach the two 3G/4G antennas.
b. Insert the Micro SIM/USIM card into the Micro SIM/USIM card
slot. When the Micro SIM/USIM card is properly installed,
the Mobile Broadband LED lights up and flashes slowly after
power on. See Install Micro SIM/USIM card into your router.
c. Insert the AC adapter of your router to the DC-IN port and
plug it to a power outlet.
d. Turn on your router.
e. Using a network cable, connect your modem to the WAN port
of your router. When the network cable is properly connected,
the WAN LED lights up.
f. Insert the AC adapter of your modem to the DC-IN port and
plug it to a power outlet.
NOTE: You can use either 3G/4G or wired Ethernet connection for
Internet access.
g. Using the bundled network cable, connect your computer to
the LAN port of your router.
Computer
Wall Power Outlet
Modem
Power
WAN
c
e
f
b
LAN
g
aa
d

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Manually connecting to a wireless network
NOTE: Ensure that you press the Wi-Fi button on your router.
1. Enable the Wi-Fi function on your wireless client for it to
automatically scan for wireless networks.
2. Select the wireless network named “ASUS_XX_2G”or “ASUS_
XX_5G”, which is the default wireless network name (SSID) of
ASUS wireless routers.
NOTE: XX refers to the last two digits of 2.4GHz MAC address. You can
find it on the label on the back of your router.
Installing Micro SIM/USIM card into your router
1. Find the Micro SIM/USIM card slot on the bottom of the router
and lift the cover.
2. Insert the Micro SIM/USIM card.

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2 Getting started
2.1 Quick Internet Setup (QIS) with Auto-
detection
To set up your router using QIS (Quick Internet Setup):
1. Press the power button at the back of your router. Ensure that
the following LEDs light up:
• PowerLED • 2.4GHzWi-FiLED
• WANorMobile
Broadband LED • 5GHzWi-FiLED
2. Launch your web browser such as Internet Explorer, Firefox,
Google Chrome, or Safari.
NOTE: If QIS does not launch automatically, enter
http://router.asus.com in the address bar and refresh the browser again.
3. Log into the Web GUI. The QIS page launches automatically.
By default, the login username and password for your router’s
Web GUI is “admin”.
4G-AC68U

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4. Assign your router login name and password and click Next.
You need this login name and password to log into ASUS
router to view or change the router settings. You can take
note of your router login name and password for future use.
5. If the WAN port is connected, the wireless router’s Quick
Internet Setup (QIS) feature automatically detects if your ISP
connection type is Dynamic IP, PPPoE, PPTP, L2TP, and
Static IP. Please obtain the necessary information from your
Internet Service Provider (ISP). If your connection type is
Dynamic IP (DHCP), QIS wizard will automatically direct you to
the next step.
for Automatic IP (DHCP)

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for PPPoE, PPTP, and L2TP
for Static IP
6. If a 3G/4G network is connected, the wireless router’s Quick
Internet Setup (QIS) feature automatically detects and applies
the APN setting to connect to the wireless base station. If the
QIS wizard failed to automatically apply the APN setting or
the SIM card prompts for a PIN code, set up the APN setting
manually.
NOTE: The PIN code may vary from different providers.

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7. The dual WAN connection configuration result is displayed.
Click Next to continue.
Mobile Broadband Connection is configured successfully
Ethernet WAN Connection is configured successfully
8. If both WAN are configured, go to next step to configure the
wireless LAN settings.

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9. Assign the network name (SSID) and security key for your
2.4GHz wireless connection. Click Apply when done.
10. Your Internet and wireless settings are displayed. Click Next
to complete the QIS process.
11. The 3G/4G signal strength LED lights up and is steady after
completing the 3G/4G network settings via QIS, indicating a
successful Internet connection.

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3 Configuring the General Settings
3.1 Using the Network Map
Network Map allows you to check the Internet connection status,
configure your network’s security settings, and manage your
network clients.