The TP-Link 4G SIM router keeps your Qashier POS and Wi-Fi kitchen printer online over mobile data. Use it at pop-ups, events and sites without broadband.
Applies to: Singapore · Qashier POS · TP-Link 4G SIM router supplied by Qashier (the unit pictured is a TL-MR6400).
Before you start
A SIM card with an active mobile data plan from a local telco. The router's SIM slot is labelled "Nano SIM Card", so use a nano-size SIM.
The router, its power adapter and a power socket near where your POS will sit.
Your POS terminal, and any Wi-Fi kitchen printer you want to connect through the router.
Set up the router
Insert the Nano SIM into the SIM slot on the back of the router (see photo below). Push it in until it clicks.
Connect the router to power and switch it on. Wait about a minute for the lights to settle.
Find the network name (SSID) and wireless password printed on the label on the back of the router.
On the POS home screen, tap ☰ (top right) > Wifi, select the router's network name and enter the wireless password.
To connect a Wi-Fi kitchen printer, use the same network name and password when you configure the printer. See How to Set Up the Qashier Wi-Fi Kitchen Printer (Black) with Qashier POS.
Usually no further setup is needed. If the POS joins the router's Wi-Fi but has no internet, you need to create an APN profile on the router. See [SG] 4G Router Connected but No Internet? Set the APN on Your TP-Link 4G Router.
What you should see
The POS Wifi page shows the router's network as connected, and the POS syncs normally (for example, product changes made in QashierHQ appear on the POS).
If something goes wrong
Symptom | Likely cause | What to do |
POS is connected to the router's Wi-Fi but has no internet | The router has no APN profile for your telco | Create the APN profile: Set the APN on Your TP-Link 4G Router |
The router's network name does not appear on the POS | Router still starting up, or too far away | Wait a minute, move the POS closer to the router, then switch the router off and on again |
Internet is slow or drops | Weak mobile signal where the router sits | Move the router closer to a window or away from metal shelving; check your SIM's data plan is still active |
Wireless password does not work | Wrong password typed | Re-enter the password exactly as printed on the label (it is case-sensitive) |
Still stuck? Contact Qashier Support.
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Last verified: 25 Sep 2026 · Markets: SG