--- title: "How to Set the IP Address on a ZKTeco K40 Pro | Qyvea" url: https://qyvea.co.ke/zkteco-k40-pro-set-ip-address description: "Change the ZKTeco K40 Pro IP address, subnet mask and gateway from the terminal menu so ZKBio Time.Net can connect. Step by step with a simple example." updated: 2026-10-20 --- > Markdown copy of https://qyvea.co.ke/zkteco-k40-pro-set-ip-address for AI assistants. Prices and stock change; check the live page. 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Setting it takes two minutes on the terminal. [Shop ZKTeco K40 terminals →](https://qyvea.co.ke/products/zkteco-k40-fingerprint-time-attendance-terminal-67)[Get help on WhatsApp](https://wa.me/254113301244?text=Hi%20Qyvea%2C%20I%20read%20your%20guide%3A%20How%20to%20Set%20the%20IP%20Address%20on%20a%20ZKTeco%20K40%20Pro.%20I%20need%20help%20with%20my%20ZKTeco%20K40%20Pro.) Quick answer On the K40 Pro press Menu > Comm. > Ethernet, then set an unused IP in the same range as your PC, with matching subnet mask and gateway. Note the port (4370 by default) and Comm Key, then add the device in ZKBio Time.Net. **Buy your ZKTeco K40 from Qyvea**: Supplied and installed across Kenya. Delivered within 24 hours once payment is confirmed. [Shop ZKTeco K40 terminals →](https://qyvea.co.ke/products/zkteco-k40-fingerprint-time-attendance-terminal-67)[All attendance terminals](https://qyvea.co.ke/products?cat=biometrics&search=attendance)[Ask Qyvea on WhatsApp](https://wa.me/254113301244?text=Hi%20Qyvea%2C%20I%20read%20your%20guide%3A%20How%20to%20Set%20the%20IP%20Address%20on%20a%20ZKTeco%20K40%20Pro.%20I%20need%20help%20with%20a%20ZKTeco%20K40%20Pro.%20Please%20quote%20me.) ## Key takeaways - PC and terminal must share the first three IP numbers. - Choose an address no other device uses. - Write down IP, port and Comm Key. - A fixed IP stops random disconnections. ## Find your PC's network range On the PC open Command Prompt and type `ipconfig`. Note the IPv4 address, subnet mask and default gateway. If the PC is 192.168.1.10 with mask 255.255.255.0 and gateway 192.168.1.1, the terminal needs an address like 192.168.1.201 (anything 192.168.1.2 to 254 that nothing else uses). ## Set the IP on the terminal 1. Press **Menu** on the K40 Pro and sign in as administrator if prompted. 2. Open **Comm.** and then **: Ethernet** (names vary slightly with firmware). 3. Set **IP Address** to your chosen free address. 4. Set **Subnet Mask** to match the PC, usually 255.255.255.0. 5. Set **Gateway** to the router address, for example 192.168.1.1. 6. Leave DHCP off for a fixed address, then save. **Watch out**: Do not reuse an address another device holds. Two devices on one IP cause drop-outs that look like a faulty terminal. See [IP conflicts](https://qyvea.co.ke/zkteco-k40-pro-ip-conflict). **Figure 1.** Communication settings: IP address, port and Comm Key. ## Check the connection 1. From the PC, open Command Prompt and type `ping 192.168.1.201` using your terminal address. 2. Replies mean the network path works. 3. No reply means a wrong range, a bad cable or a switch problem; fix that before touching the software. ## Add it to the software Once ping works, add the device in ZKBio Time.Net under Device > Device > Add with TCP/IP, the same IP and port 4370. Follow [the add device guide](https://qyvea.co.ke/zkbio-time-net-add-device-tcp-ip). ## Make it stay put Reserve the address in your router (DHCP reservation) or keep it outside the router's automatic range. Stick a label inside the terminal cover with IP, port and the date. The next technician will thank you. ## A typical scenario A Karen clinic's PC was 192.168.0.15 but the new K40 Pro was still on 192.168.1.201 from the factory, so the software never found it. Changing the terminal to 192.168.0.201 and reserving it in the router took two minutes, and Test Connection turned green. *Illustrative example based on common cases, not a named customer.* ## Common mistakes - Changing the PC IP instead of the terminal and breaking the office internet. - Choosing an address inside the router's DHCP range so a phone takes it later. - Mistyping the subnet mask or gateway. - Forgetting to update the software after changing the IP. - Not labelling the IP anywhere. ## Quick checklist 1. Find the PC range with ipconfig 2. Pick a free address outside the DHCP range 3. Set IP, mask and gateway on the terminal 4. Ping the terminal from the PC 5. Update the device in the software 6. Label the terminal ## Frequently asked questions What is the default IP of a ZKTeco terminal? Many ZKTeco terminals ship with 192.168.1.201, but yours may differ. Check Menu > Comm. on the device. See [our default IP guide](https://qyvea.co.ke/zkteco-k40-pro-default-ip-address-and-port). Can I use DHCP? You can, but the address may change after a power cut and the software will lose the device. A fixed or reserved address is safer. Do I change the PC IP or the terminal IP? Usually the terminal, because the PC is already on your office network. Only change the PC if you connect directly with a cable and no router. The ping works but the software still fails. Why? Check the port, the Comm Key, the firewall and that the device status is Enable in the software. This guide is part of our [ZKTeco K40 and ZKBio Time.Net series](https://qyvea.co.ke/zkteco-k40-zkbio-time-net-guides-kenya). For the full start-to-finish walkthrough with screenshots, read [How to Configure a ZKTeco K40 Pro with ZKBio Time.Net](https://qyvea.co.ke/how-to-configure-zkteco-k40-pro-zkbio-time-net). ZKTeco and ZKBio are trademarks of ZKTeco Inc. Menu names on the K40 Pro and in the software vary slightly by firmware and software version; where yours differ, look for the nearest match. Qyvea is a ZKTeco reseller and installer in Kenya. **Want us to do this for you?**: We supply, install, configure the software, enrol your staff and train your HR team. [Shop ZKTeco K40 terminals →](https://qyvea.co.ke/products/zkteco-k40-fingerprint-time-attendance-terminal-67)[All attendance terminals](https://qyvea.co.ke/products?cat=biometrics&search=attendance)[Ask Qyvea on WhatsApp](https://wa.me/254113301244?text=Hi%20Qyvea%2C%20I%20read%20your%20guide%3A%20How%20to%20Set%20the%20IP%20Address%20on%20a%20ZKTeco%20K40%20Pro.%20I%20need%20help%20with%20a%20ZKTeco%20K40%20Pro.%20Please%20quote%20me.) ## Why customers choose Qyvea **Genuine brands**: Manufacturer warranty on what we sell, so you are not gambling on the box. **One team, start to finish**: The people who advise you also install and support it. **Fast answers**: WhatsApp replies usually within 30 minutes, and delivery within 24 hours in Nairobi. **Easy to buy**: Pay by M-Pesa, bank transfer or card. Free delivery in Nairobi on orders over KES 5,000. **Risk taken off you**: 7-day returns and exchanges on products, and a workmanship warranty on installations. **Customers say so**: Rated 4.6/5 from 57 Google reviews. **Your next step takes one minute:** send us a photo of the place on WhatsApp and we will tell you what it needs. ## Related articles [Biometrics & Attendance · Guide ZKTeco K40 Pro Default IP Address, Port 4370 and Comm Key The usual defaults (192.168.1.201, port 4370, Comm Key 0) and how to confirm yours. 2 min read**READ FULL ARTICLE →**](https://qyvea.co.ke/zkteco-k40-pro-default-ip-address-and-port)[Biometrics & Attendance · Guide Connect a ZKTeco K40 Pro to a PC with a LAN Cable Direct cable or switch: how to link the K40 Pro to your PC with fixed IPs. 2 min read**READ FULL ARTICLE →**](https://qyvea.co.ke/zkteco-k40-pro-connect-to-pc-with-lan-cable)[Biometrics & Attendance · Guide ZKBio Time.Net: How Overtime Is Calculated and How to Set the Rules Enable OT in the timetable, set the rules and read OT hours in reports. 2 min read**READ FULL ARTICLE →**](https://qyvea.co.ke/zkbio-time-net-overtime-calculation) ### Related guides [All ZKTeco K40 and ZKBio guides](https://qyvea.co.ke/zkteco-k40-zkbio-time-net-guides-kenya)[Configure a K40 Pro with ZKBio Time.Net](https://qyvea.co.ke/how-to-configure-zkteco-k40-pro-zkbio-time-net)[Use ZKTeco attendance software](https://qyvea.co.ke/how-to-use-zkteco-attendance-software) ### Related products [ZKTeco K40 terminal](https://qyvea.co.ke/products/zkteco-k40-fingerprint-time-attendance-terminal-67)[ZKTeco K40 price in Kenya](https://qyvea.co.ke/zkteco-k40-price-in-kenya)[ZKTeco attendance machines](https://qyvea.co.ke/zkteco-attendance-machine-price-in-kenya) ### Related services [Biometrics & attendance](https://qyvea.co.ke/biometrics)[Biometric attendance systems](https://qyvea.co.ke/biometric-attendance-systems-kenya) [← Previous**ZKBio Time.Net System Requirements: Windows 10 and 11**](https://qyvea.co.ke/zkbio-time-net-system-requirements-windows-11)[Next →**: ZKTeco K40 Pro Default IP Address, Port 4370 and Comm Key**](https://qyvea.co.ke/zkteco-k40-pro-default-ip-address-and-port) ## Need this system installed? 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