How to solve if there is no network when plugging in a T-Mobile or AT&T SIM card?

Go to Advanced>IPv6 to enable it; Go to Advanced Settings>TTL>Custom and set TTL to 64, HL to 65; Go to General Settings>3G/4G , set APN profile as Manual, set APN as VSBLINTERNET, leave username and password as blank, set authentication as PAP+CHAP

How to acquire the T-Mobile & T-Mobile B2B Static IP?

Go to General Settings -> 3G/4G, set Network mode as 4G only, set APN profile as Manual, set APN as fast.t-mobile.com (Note:for static IP plan, set APN as b2b.static ), leave username and password as blank, and set Authentication as PAP+CHAP.

What should I do if the issue still exists?

Please upgrade the firmware of the LT400 and try again. Or contact cudy support for help.

Cudy Lte N300 Wi Fi 4g Router With Sim Slot

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

R3069

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Description

🚀 Unlock lightning-fast 4G Wi-Fi freedom—connect smarter, work anywhere!

ROBUST MULTI DEVICE WI FI - Supports up to 30 devices on stable 300 Mbps Wi-Fi 4—perfect for your smart home or remote office hustle.
VERSATILE WIRED NETWORKING - Four configurable 100 Mbps Ethernet ports for PCs, consoles, and smart TVs—flexibility meets speed.
SEAMLESS 4 G LTE CONNECTIVITY - Instant internet via Nano SIM with blazing 150 Mbps download speeds—stay ahead, always connected.
ENTERPRISE GRADE VPN SECURITY - Built-in WireGuard, OpenVPN & more for secure remote access—your data fortress on the go.
SMART FAILOVER PARENTAL CONTROLS - Auto WAN/WISP/Cellular failover plus profile-based screen time management—control meets reliability.

The Cudy LTE N300 Wi-Fi 4G Router LT400 combines 4G LTE Cat.4 speeds up to 150 Mbps with 300 Mbps Wi-Fi 4 and four Ethernet ports, supporting up to 30 devices. Featuring advanced VPN protocols and automatic failover, it ensures secure, uninterrupted connectivity ideal for home offices, RVs, and remote setups. Easy app control and parental management make it a versatile, reliable networking solution.

Specifications

ASIN	B085S2147W
Antenna Location	Business, Home
Antenna Type	Fixed
Best Sellers Rank	4,671 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 35 in Routers
Box Contents	Ethernet Cable, Installation Guide, LT400, Power Adapter
Brand Name	Cudy
Colour	Black
Compatible Devices	Laptop, Personal Computer, Smartphone, Tablet
Connectivity Protocol	Wi-Fi, 4G LTE
Connectivity Technology	LTE, Wi-Fi
Control Method	App
Controller Type	App Control, Web Interface
Country of Origin	China
Coverage	extended
Customer Reviews	4.3 4.3 out of 5 stars (6,274)
Data Transfer Rate	300 Megabytes Per Second
Frequency	2.4 GHz
Frequency Band Class	Single-Band
Has Internet Connectivity	Yes
Has Security Updates	Yes
Is Electric	Yes
Is Modem Compatible	Yes
Item Dimensions L x W x H	23L x 14.6W x 21H centimetres
Item Highlight	MiFi for Caravan, Cellular Wi-Fi, 4x 100M Ports, 1x Nano SIM Slot, Multiple VPN Server & Client, App Control, Easy Setup
Item Weight	205 Grams
LAN Port Bandwidth	100 megabits_per_second
Manufacturer	Shenzhen Cudy Technology Co., Ltd.
Manufacturer Part Number	LT400
Maximum Upstream Data Transfer Rate	50 Megabits Per Second
Model Name	LT400
Model Number	LT400
Number of Antennas	4
Number of Items	1
Number of Packs	1
Number of Ports	4
Operating System	RouterOS
Other Special Features of the Product	300 Mbps WiFi, 4G LTE FDD&TDD, DDNS, VPN
Product Warranty	2-Year Warranty
RAM Memory Installed	64 MB
Router Firewall Security Level	Advanced
Router Network Type	hybrid
Security Protocol	[INF] Supports security protocols through VPN clients
Unit Count	1.0 count
Voltage	12 Volts
Wi-Fi Generation	802.11n
Wireless Compability	2.4 GHz Radio Frequency, 802.11n

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R3069

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

Cudy LTE N300 Wi-Fi 4G Router with SIM Slot, 4 Ethernet Ports, LT400

Details

Details

Description

Specifications

Common Questions