How to use the router ? Insert the standard sim card Then connect the terminal devices with router via Lan port or WIFI You could configure the router after log in web page( IP：192.168.0.1） Note: Before inserting the SIM card into the router. Make sure the SIM card is activated If you meet any problem, please follow below instructions： 1. Pls refer to the user guide in the package. 2. Press the reset button for 10 seconds to restore the router to factory default setting. 3. If it is still not working, pls contact our support team. External Port 2*SMA external antenna port 1*sim card slot 4*RJ45 port 2*RJ-11 Speed(CAT4) 1.LTE-FDD download/upload: up to 150/50Mbps 2.DC-HSPA+ dowanload: up to 43.2Mbps 3.HSPA+ download: up to 21.6Mbps Yeacomm 4G LTE CPE Router Wi-Fi Hotspot with 4 RJ45 Port and 2 RJ11 Port for Home/Office Multi-band for 32 users External Detachable Antennas 2*RJ11 Ports , Support Voice Feature FDD: BandB2/B3/B4/B5/B7/B8/B28 TDD: Band38/39/40/41 3G HSPA+: 850/900/1900Mhz Easy Setup. Powerful Features With LED indicator display, see the status easily Multiple 4G/3G/GPRS frequency bands 4*RJ45 and 2*RJ11 port, VoLTE IPv4/IPv6 dual stack TR069 management FCC certification L2tp VPN Stable Network According to your needs and the signal base station construction distribution of your SIM service provider, you can lock the 4g lte router’s frequency band to bring more stable network service TTL Setting Time to Live (TTL) is like an expiration date for DNS records. This setting plays a significant role in DNS as it can affect query volume and propagation speed.Yeacomm P21 LTE CPE router support TTL setting. Users could configure the TTL value to 32, 64, 65, 128 and 255. Built-in VPN Clients With built-in L2TP VPN Clients,This router encrypts and protects your network data. L2TP extends the PPP model. L2 connections can be terminated on a local circuit concentrator and then extended logical PPP sessions over shared networks such as frame relay circuits or the Internet without termination on the NAS. Multi-band for 32 users Supporting 32 users to use the WIFI network at the same time, this 4G LTE CPE router is suitable for various occasions, whether the company multi-person network needs, shopping malls public WIFI or all family members network use needs can be met Yeacomm P21 4G LTE CPE Router 4G LTE Transmission Speed Up to 150 Mbps Download / 50 Mbps Upload WiFi Standard 802.11 b/g/n,2.4GHz Recommended of Devices Up to 32 SIM Slot Standard SIM (Include with a SIM adapter which could turn Nano SIM or Micro SIM to a Standard SIM) ISP compatiblity T-Mobile Antennas 2 x Detachable antenna Cellular Frequency Band FDD: BandB2/B3/B4/B5/B7/B8/B28; TDD: Band38/39/40/41; 3G HSPA+: 850/900/1900Mhz Frequency Band Locking Support VPN Clients L2TP Internet Protocol IPv4/IPv6 dual stack TTL Settings 32/64/65/128/255 Additional Features Voice Feature, support 2*RJ11 Ports Use as a primary or backup network connection to provide high speed and stable Internet for the office, keeping your network always online and providing a more secure work network. No special operations can be simple to obtain an efficient and stable network. Just plug in a standard SIM card, turn on the router and it’s ready to go. Help you create an online smart home living environment. Only need to insert an activated SIM card to connect your device to the Internet through a LAN port or WIFI. This is very convenient whe