Table of Contents
TL-MR108_V1_Product and Installation Guide
About This Guide
This guide provides a brief introduction to 300Mbps Wireless N 4G LTE Router and regulatory information.
Note: Features available in this range extender may vary by model and software version. Router availability may also vary by region or ISP. All images, steps, and descriptions in this guide are only examples and may not reflect your actual router experience.
Conventions
In this guide the following conventions are used:
|
Convention |
Description |
|---|---|
|
Underline |
Underlined words or phrases are hyperlinks. You can click to redirect to a website or a specific section. |
|
Bold |
Contents to be emphasized and texts on the web page are in bold, including the menus, items, buttons and so on. |
|
> |
The menu structures to show the path to load the corresponding page. For example, Settings > System Tools > Firmware Upgrade means the Firmware Upgrade page is under the System Tools menu that is located in the Settings tab. |
|
Note: |
Ignoring this type of note might result in a malfunction or damage to the device. |
|
Tip: |
Indicates important information that helps you make better use of your device. |
More Info
The latest software, management app and utility can be found at Download Center at https://www.tp-link.com/support/download/.
The Quick Installation Guide can be found where you find this guide or inside the package of the router.
Specifications can be found on the product page at https://www.tp-link.com.
TP-Link Community is provided for you to discuss our products and share knowledge at https://community.tp-link.com.
Our Technical Support contact information can be found at the Contact Technical Support page at https://www.tp-link.com/support/.
Disclaimer
*Maximum wireless signal rates are the physical rates derived from IEEE Standard 802.11 specifications. Actual wireless data throughput and wireless coverage are not guaranteed and will vary as a result of 1) environmental factors, including building materials, physical objects, and obstacles, 2) network conditions, including local interference, volume and density of traffic, product location, network complexity, and network overhead, and 3) client limitations, including rated performance, location, connection, quality, and client condition.
1. Get to Know About Your Modem Router
1.1 Product Overview
The 4G LTE Router shares the latest generation 4G LTE network with multiple Wi-Fi devices, anywhere you want.
With Ethernet ports and antennas, the router provides wired and wireless access for multiple computers and mobile devices.
With various features and functions, the router is the perfect hub of your home or business network.
1.2 Appearance
1.2.1 Front Panel
_1.0_L_20260506090027b.png)
The router’s LEDs (view from left to right) are located on the front. You can check the router’s working status by following the LED Explanation table.
|
Name |
Status |
Indication |
|
(Power) |
On |
Power is on. |
| Flashing | The system is starting up or firmware is being upgraded. Do not disconnect or power off your modem router. | |
| Off |
Power is off. |
|
|
(Internet) |
On |
Internet service is available. |
|
Off |
Internet service is unavailable. | |
|
(Wi-Fi) |
On |
Wi-Fi is enabled. |
| Flashing | WPS connection is in progress. This may take up to 2 minutes. | |
| Off | Wi-Fi is disabled. | |
|
(LAN) |
On | At least one LAN port is connected. |
| Off | No LAN port is connected or LAN port is not connected properly. | |
|
(Signal Strength) |
On |
Indicates the signal strength received from the mobile internet network. More lit bars indicates a better signal strength. |
| Off | There is no mobile internet signal. |
Notes:
1. For better internet connection, make sure2 or 3 bars of the Signal Strength LED are lit.
2. If the Signal Strength LED is off, please check your Internet connection first. Refer to Connect the Hardware for more information about how to make Internet connection correctly. If you have already made a right connection, please contact your ISP to make sure your Internet service is available now.
3. If the Internet LED is off, please check your Signal Strength LED first. If your Signal Strength LED is also off, please refer to Note 1. If your Signal Strength LED is ON, please check your Internet configuration. You may need to check this part of information with your ISP and make sure everything have been input correctly.
1.2.2 Back panel
_1.0-B_20260506090404j.png)
The following parts (view from left to right) are located on the back panel.
|
Item |
Description |
| POWER | For connecting the modem router to power socket via the provided power adapter. |
| LAN1, LAN2, LAN3,LAN4/WAN Ports |
For connecting the router to your PC or other Ethernet network devices. In wireless router mode, the WAN port is used for connecting to a Cable/FTTH/VDSL/ADSL device. |
| WPS/Wi-Fi |
Press and immediately release the button, and within 2 minutes press the WPS button on your client to start the WPS process. Press and hold the button for more than 2 seconds, then release the button to turn on or off the wireless function of your router. |
| RESET | Press and hold the button for about 2 seconds until the Power LED blinks to reset the router to its factory default settings. |
| Nano SIM Card Slot | For holding the nano SIM card. |
2. Connect the Hardware
2.1 Position Your Router
With the router, you can access your network from anywhere within the wireless network coverage. However, the wireless signal strength and coverage varies depending on the actual environment where your router is in. Many obstacles may limit the range of the wireless signal, for example, concrete structures, thickness and number of walls.
For your security and best Wi-Fi performance, please:
-
Do not locate the router in the place where it will be exposed to moisture or excessive heat.
-
Keep away from strong electromagnetic radiation source and electromagneticsensitive devices.
-
Place the router in a location where it can be connected to multiple devices as well as to a power source.
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Place the router in a location where it can receive a strong mobile internet signal.
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Make sure the cables and power cord are safely placed out of the way so they do not create a tripping hazard.
Generally, the router is placed on a horizontal surface, such as on a shelf or desktop.
Try relocating the router to a spot that may receive a stronger mobile network signal, such as near a window.

The device also can be mounted on the wall as shown in the following figure.

Note: The diameter of the screw, 5.5mm<D<8.58mm. The distance of two screws is 87mm. The screw that project from the wall need around 3 mm based, and the length of the screw need to be at least 8.3 mm to withstand the weight of the product.
定位您的路由器:
有了無線路由器,您就可以在無線網路覆蓋範圍內的任何位置存取您的網路。但是,無線訊號強度和覆蓋範圍會因路由器所處的實際環境而有所不同。許多障礙物可能會限制無線訊號的範圍,例如混凝土牆、牆壁的厚度和數量。
為了您的安全和最佳 Wi-Fi 效能,請:
-
產品不應放置在會受潮濕或過高溫度的地方。
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將路由器放置在能夠連接多個設備並接上電源的地方。
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請確保線和電源線放置在安全位置,以免造成絆倒的危險。
-
路由器可以放置在架子上或桌面上。
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將路由器遠離具有強烈電磁干擾的設備,例如藍牙設備、無線電話和微波爐。
-
將無線路由器放置在能夠接收良好移動網路訊號的位置。
通常,路由器放置在水平的表面上,例如在架子上或桌面上。
嘗試將路由器移至行動網路訊號更強的位置,例如窗戶附近。

該設備還可以安裝在牆上,如下圖所示。

注意:螺絲頭直徑為5.5mm<D<8.58mm,兩個螺絲之間的距離為87mm。從牆壁突出的螺絲需要約3mm的基底,並且螺絲的長度至少需要8.3mm才能承受產品的重量。
2.2 Connect Your Router
Follow the steps below to connect your router.
1. Install the antennas and position them upwards.
2. Insert the nano SIM card into the slot until you hear a click.
3. Connect the power adapter. The power source shall be near the device and shall be easily accessible.

4. Connect your computer to the router.
Option 1: Wired
Connect your computer’s Ethernet port to the LAN port on the router via an Ethernet cable.
Option 2: Wirelessly
Use the default SSID (Wireless Network Name) and Wireless Password printed on the product label of the router to connect wirelessly.
Option 3: Use the WPS button
Wireless devices that support WPS, including Android phones, tablets, and most USB network cards, can be connected to your router through this method.
Notes:
• WPS is not supported by iOS devices.
• The WPS function cannot be configured if the wireless function of the router is disabled. Also, the WPS function will be disabled if your wireless encryption is WEP. Please make sure the wireless function is enabled and is configured with the appropriate encryption before configuring the WPS.
1 ) Tap the WPS icon on the device’s screen.
2 ) Immediately press the WPS button on your router.
3 ) The WPS LED flashes for about 2 minutes during the WPS process.
4 ) When the WPS LED is on, the client device has successfully connected to the router.

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3. Setup Your Modem Router
Method 1: Via the TP-Link Tether App
1. Launch the Apple App Store or Google Play Store and search TP-Link Tether or simply click the button below to download and install the app.
2. Launch the Tether app and log in with your TP-Link ID.
Note: If you don’t have a TP-Link ID, create one first.
3. Tap the + icon on the upper-right corner and select Add a Router. Follow app instructions to set up and connect to the internet.
Method 2: Via the Web Browser
1. Make sure your computer is connected to the router (wired or wireless).
2. Launch a web browser and type in http://tplinkmodem.net or http://192.168.1.1. Create a new password for future logins.
Note: If the login page does not appear, please refer to Q1 of FAQ in this guide.

3. Follow the step-by-step instructions of the Quick Setup to complete the initial configuration.
FAQ
Q1. What should I do if I cannot access the web management page?
• Reboot your router and try again.
• If the computer is set to a static IP address, change its settings to obtain an IP address automatically.
• Make sure http://tplinkmodem.net or http://192.168.1.1 is correctly entered in the web browser.
• Use another web browser and try again.
• Disable and enable the active network adapter in use.
Q2. What should I do if I cannot access the internet?
• Verify that your SIM card is an LTE or WCDMA card.
• Verify that your SIM card is in your internet service provider’s service area.
• Verify that your SIM card has sufficient credit.
• Launch a web browser, log in to the web management page, and check the following:
1) Go to Advanced > Network > PIN Management to verify if PIN is required. If it is, enter the correct PIN provided by your ISP, and click Save.
2) Go to Advanced > Network > Internet to verify the parameters provided by your ISP are correctly entered. If the parameters are incorrect, click Create Profile and enter the correct parameters, then select the new profile from the Profile Name list.
3) Go to Advanced > Network > Data Settings to verify if the Total/Monthly Used exceeds the Total/Monthly Allowance. If it does, click Correct and set Total/Monthly Used to 0 (zero), or disable Data Limit.
4) Go to Advanced > Network > Internet to verify that Mobile Data is enabled. If it is not, enable it to access the internet.
5) Confirm with your ISP if you are in a roaming service area. If you are, go to Advanced > Network > Internet to enable Data Roaming.
Q3. How do I restore the router to its factory default settings?
• With the router powered on, press and hold the RESET button on the rear panel of the router until the Power LED starts flashing, then release the button. Wait until the router reboots.
• Log in to the web management page of the router, and go to Advanced > System Tools > Backup & Restore, click Factory Restore and wait until the reset process is complete.
Q4. What should I do if I forget my web management page password?
• Refer to Q3 to reset the router, then create a new password to log in.
Q5. What should I do if I forget my wireless network password?
• The default wireless password is printed on the product label of the router.
• Connect a computer directly to the router via an Ethernet cable. Log in to the router's web management page and go to Basic > Wireless to retrieve or reset your wireless password.
Q6. How should I position my router for optimal network connection?
• Don’t place your router in a corner or in a closet.
• Avoid obstacles and high-powered appliances.
• Keep your router in a higher location, ideally near a window.
Authentication
CE Mark Warning

Power Adapter
| Manufacturer | Spec | Model |
|---|---|---|
| TP-Link | US | T090085-2B1 |
| TP-Link | CE | T090085-2C1 |
| TP-Link | UK | T090085-2D1 |
| TP-Link | AU | T090085-2E1 |
| TP-Link | AR | T090085-2F1 |
| TP-Link | KR | T090085-2H1 |
|
TP-Link |
IN | T090085-2I1 |
OPERATING FREQUENCY(the maximum transmitted power)
2400 MHz -2483.5 MHz (20dBm)
WCDMA: B1/B5/B8 (25dBm±1dBm)
LTE: B1/B3/B5/B7/B8/B20/B28/B38/B40/B41 (23dBm±2dBm)
EU Declaration of Conformity
TP-Link hereby declares that the device is in compliance with the essential requirements and other relevant provisions of directives 2014/53/EU, 2009/125/EC, 2011/65/EU and (EU)2015/863.
The original EU Declaration of Conformity may be found at https://www.tp-link.com/en/support/ce/
RF Exposure Information
This device meets the EU requirements (2014/53/EU Article 3.1a) on the limitation of exposure of the general public to electromagnetic fields by way of health protection.
The device complies with RF specifications when the device used at 20 cm from your body.
UKCA Mark

UK Declaration of Conformity
TP-Link hereby declares that the device is in compliance with the essential requirements and other relevant provisions of the Radio Equipment Regulations 2017.
The original UK Declaration of Conformity may be found at https://www.tp-link.com/support/ukca/
Korea Warning Statements:
당해 무선설비는 운용중 전파혼신 가능성이 있음.


NCC Notice & BSMI Notice
注意!
取得審驗證明之低功率射頻器材,非經核准,公司、商號或使用者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。
低功率射頻器材之使用不得影響飛航安全及干擾合法通信;經發現有干擾現象時,應立即停用,並改善至無干擾時方得繼續使用。
前述合法通信,指依電信管理法規定作業之無線電通信。
低功率射頻器材須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。
減少電磁波影響,請妥適使用。
建議使用時設備天線至少距離人體20公分。
安全諮詢及注意事項
-
請使用原裝電源供應器或只能按照本產品注明的電源類型使用本產品。
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清潔本產品之前請先拔掉電源線。請勿使用液體、噴霧清潔劑或濕布進行清潔。
-
注意防潮,請勿將水或其他液體潑灑到本產品上。
-
插槽與開口供通風使用,以確保本產品的操作可靠並防止過熱,請勿堵塞或覆蓋開口。
-
請勿將本產品置放於靠近熱源的地方。除非有正常的通風,否則不可放在密閉位置中。
-
不要私自拆開機殼或自行維修,如產品有故障請與原廠或代理商聯繫。
限用物質含有情況標示聲明書
| 設備名稱:300Mbps Wireless N 4G LTE Router 型號(型式):TL-MR108 Equipment name Type designation (Type) |
||||||
|---|---|---|---|---|---|---|
| 單元 Unit |
限用物質及其化學符號 Restricted substances and its chemical symbols |
|||||
| 鉛 Lead (Pb) |
汞 Mercury (Hg) |
鎘 Cadmium (Cd) |
六價鉻 Hexavalent chromium (Cr+6) |
多溴聯苯 Polybrominated biphenyls (PBB) |
多溴二苯醚 Polybrominated diphenyl ethers (PBDE) |
|
| PCB | ○ | ○ | ○ | ○ | ○ | ○ |
| 外殼 | ○ | ○ | ○ | ○ | ○ | ○ |
| 電源供應器 | − | ○ | ○ | ○ | ○ | ○ |
| 其他及其配件 | − | ○ | ○ | ○ | ○ | ○ |
| 備考1.〝超出0.1 wt %〞及〝超出0.01 wt %〞係指限用物質之百分比含量超出百分比含量基準值 Note 1:“Exceeding 0.1 wt %” and “exceeding 0.01 wt %” indicate that the percentage content of the restricted substance exceeds the reference percentage value of presence condition. 備考2.〝○〞係指該項限用物質之百分比含量未超出百分比含量基準值。 Note 2:“○” indicates that the percentage content of the restricted substance does not exceed the percentage of reference value of presence. 備考3.〝-〞係指該項限用物質為排除項目。 Note 3:The “−” indicates that the restricted substance corresponds to the exemption. |
||||||

Продукт сертифіковано згідно с правилами системи УкрСЕПРО на відповідність вимогам нормативних документів та вимогам, що передбачені чинними законодавчими актами України.

Safety Information
-
Keep the device away from water, fire, humidity or hot environments.
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Do not attempt to disassemble, repair, or modify the device. If you need service, please contact us.
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Do not use damaged charger or USB cable to charge the device.
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Do not use any other chargers than those recommended.
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Do not use the device where wireless devices are not allowed.
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Adapter shall be installed near the equipment and shall be easily accessible.
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Use only power supplies which are provided by manufacturer and in the original packing of this product. If you have any questions, please don’t hesitate to contact us.
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Operating Temperature: 0℃~40℃
-
請勿使用損壞的充電器或USB線來供應設備充電。
-
請勿使用推薦充電器以外的任何其他充電器。
-
變壓器應安裝在設備附近且易於操作。
-
運作溫度: 0°C~40°C (32°F~104°F)
This product uses radios and other components that emit electromagnetic fields. Electromagnetic fields and magnets may interfere with pacemakers and other implanted medical devices. Always keep the product and its power adapter more than 15 cm (6 inches) away from any pacemakers or other implanted medical devices. If you suspect your product is interfering with your pacemaker or any other implanted medical device, turn off your product and consult your physician for information specific to your medical device.
Please read and follow the above safety information when operating the device. We cannot guarantee that no accidents or damage will occur due to improper use of the device. Please use this product with care and operate at your own risk.
Explanation of the symbols on the product label
Note: The product label is on the bottom of the product and its I.T.E. power supply. Symbols may vary from products.
注意:產品標籤可以在產品底部和其I.T.E.電源供應器上找到。符號可能因產品而異。
| Symbol 符號解釋 |
Explanation 解釋 |
|---|---|
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Class II equipment Class II 設備 |
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Class II equipment with functional earthing 具有功能接地的Class II 設備 |
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Alternating current 交流電 |
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DC voltage 直流電壓 |
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Polarity of output terminals 輸出端子極性 |
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Indoor use only 僅限室內使用 |
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Dangerous voltage 危險電壓 |
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Caution, risk of electric shock 注意,有觸電危險 |
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Energy efficiency Marking 能源效率標示 |
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Protective earth 保護地線 |
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Earth 地線 |
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Frame or chassis 機架接地 |
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Functional earthing 功能地線 |
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Caution, hot surface 警告,表面高溫 |
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Caution 警告 |
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Operator’s manual 操作手冊 |
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Stand-by 待機 |
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“ON”/”OFF” (push-push) 「開」/「關」 ( 按壓式) |
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Fuse 保險絲 |
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Fuse is used in neutral N 保險絲用於中性線N |
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RECYCLING This means that this product must be handled pursuant to European directive 2012/19/EU in order to be recycled or dismantled to minimize its impact on the environment. |
| m | Switch of mini-gap construction 微間隙結構的開關 |
| µ | Switch of micro-gap construction (for US version) Switch of micro-gap / micro-disconnection construction (for other versions except US) 微小間隙結構開關(適用於美國版) 微小間隙 / 微小斷開結構開關(適用於美國以外的其他版本) |
| ε | Switch without contact gap (Semiconductor switching device) 無接點間隙開關(半導體開關裝置) |



























