The Teltonika TRB140 is a compact 4G LTE router. This guide covers hardware setup, the manual APN configuration, an equivalent configuration script you can paste in directly, and a few optional but recommended features worth turning on: remote access, PING reboot, and SMS reboot.

Before you start, make sure your SIM is activated in the Simbase dashboard. If it isn't, see SIM state first.

For a visual walkthrough alongside this guide, see Teltonika's TRB140 setup video.

Step 1: Prepare the hardware

1. Unscrew the panel to access the SIM slot

2. Insert your Simbase SIM into the router's SIM holder and close the panel

3. Screw the antenna onto its connection point

4. Connect the power cable to the router and plug it into an outlet

Step 2: Connect and log in

The router takes a few minutes to start up. Connect your computer to it via the Ethernet port.

1. Open a browser and go to 192.168.2.1

2. Log in with username admin and password admin01

3. If this is your first login, you'll be prompted to change the default password. Follow the prompts

4. Click MODE in the top right corner and switch to advanced mode. The remaining steps assume advanced mode is on

Step 3: Set the APN manually

1. Go to Network → Interfaces

2. Click the pencil icon on the MOB1S1A1 entry

3. Turn off Auto APN

4. Leave everything else at its default, except:

   • APN: --custom--

   • Custom APN: simbase (Most profiles use simbase. Check Set up the APN for your profile's APN before continuing).

5. Scroll down and click Save & Apply

Your SIM should now connect to the internet.

For background on what an APN does and how Simbase's APN profiles work, see Set up the APN.

Step 4: Or configure everything via script

If you'd rather paste a script than click through the UI, this does the same APN setup plus a set of recommended and optional extras.

1. Log in to the router and go to System → Custom Script

2. Clear the input field

3. Paste the script below and click Save & Apply

# Set APN to simbase (required)
uci set network.mob1s1a1.disabled='0'
uci set network.mob1s1a1.force_link='0'
uci set network.mob1s1a1.stp='0'
uci set network.mob1s1a1.igmp_snooping='0'
uci set network.mob1s1a1.method='nat'
uci set network.mob1s1a1.pdptype='ip'
uci set network.mob1s1a1.force_apn='-1'
uci set network.mob1s1a1.apn='simbase'
uci set network.mob1s1a1.auth='none'
uci set simcard.@sim[0].auto_apn='0'
uci commit && reload_config
​
# Set router config to Advanced mode (highly recommended)
uci set vuci.main.advanced='1'
​
# Set MTU to 1200 (highly recommended)
uci set network.mob1s1a1.mtu='1200'
​
# Enable remote HTTP (optional)
uci set firewall.@rule[11].enabled='1'
uci commit && reload_config
​
# Enable remote SSH (optional)
uci set firewall.@rule[10].enabled='1'
uci commit && reload_config
​
# Enable SMS reboot (optional)
uci set sms_utils.@rule[0].status_sms='0'
uci set sms_utils.@rule[0].authorization='no'
uci commit && reload_config
​
# Reset LAN IP to default (optional)
uci set network.lan.ipaddr='192.168.2.1'
uci set network.lan.netmask='255.255.255.0'
uci set network.lan.proto='static'
uci commit && reload_config
​
# Enable PING reboot (highly recommended)
uci set ping_reboot.@ping_reboot[0].enable='1'
uci commit && reload_config
​
exit 0

The # (required), # (highly recommended), and # (optional) comments mark which blocks you can safely remove if you don't want that behavior. The required block is the first one: it's what sets the APN to simbase (or another Simbase-approved APN specific to your use case).

For a guided version of this step, see below:

Enable remote access

Teltonika routers support remote configuration, useful if you need to reach the device's admin panel without being on its local network. See below Teltonika's remote access walkthrough:

Enable PING reboot

We strongly recommend enabling PING reboot. Once enabled, the router pings Google's DNS (8.8.8.8) every 5 minutes. If a ping fails, the router assumes there's a mobile connection problem and reboots itself, recovering from silent drops without anyone needing to notice or intervene.

Check out Teltonika's PING reboot walkthrough below:

Enable SMS reboot

If the router ever loses its data connection entirely (so it can't be reached over the internet), SMS reboot gives you a way to force a hardware reboot remotely. See Teltonika's SMS reboot walkthrough to enable it.

Once enabled, send an SMS containing the text reboot to the SIM to trigger a reboot. For how to send SMS from Simbase, see SMS.

TRB140 specs

• Processor: ARM Cortex-A7, 1.2 GHz

• Memory: 256 MB DDR3 RAM, 256 MB NAND flash

• Networking: 4G LTE (FDD/TDD), 3G (WCDMA/CDMA), 2G

• Power: 12V DC adapter or USB

• Operating temperature: -40°C to 75°C

• Dimensions: 74.5 x 25 x 64.4 mm

• Weight: 134 g

• Certifications: CE/RED, EAC, RoHS, WEEE

These specs apply to the TRB140 specifically. Other Teltonika models will differ. For full details, see Teltonika's official TRB140 documentation.

Common questions

Related

• Compatibility check — confirm supported frequency bands and network technology before setup

• Set up the APN — what the APN does and Simbase's APN profiles

• SIM state — activate your SIM before connecting hardware

• Connectivity issues — troubleshoot your SIM