192.168.100.27 Admin Login

The IP address 192.168.100.27 is a private Class C IPv4 address that belongs to the 192.168.100.0/24 subnet — one of the most recognizable subnets in home and ISP-provisioned networking. This subnet is strongly associated with modem-router combo units from brands such as Huawei, Arris, Motorola, Zyxel, Ubee, and Ambit Microsystems, all of which commonly assign 192.168.100.1 as their default gateway. When your router or modem-router uses 192.168.100.1 as its gateway, any device you connect to that network — a laptop, smartphone, smart TV, or printer — will receive a host address within the same subnet, such as 192.168.100.27, either via DHCP or through a static assignment. Unlike the more common 192.168.1.1 or 192.168.0.1 subnets used by consumer-grade routers, the 192.168.100.x range is especially prevalent in ISP-supplied equipment deployed by providers such as Comcast/Xfinity, Spectrum, Virgin Media, and regional carriers worldwide. If your device has been assigned 192.168.100.27, it means you are operating within one of these networks.

How to Access Your Router from 192.168.100.27

If your device currently holds the IP address 192.168.100.27, your router's admin panel is almost certainly reachable at http://192.168.100.1 — the default gateway for the 192.168.100.0/24 subnet. To access it, open any web browser on a device connected to the same network and type http://192.168.100.1 directly into the address bar (not the search bar). This will load the router's login page, where you can enter your administrator credentials.

For Huawei modem-routers, the default login is typically admin / admin or admin / password, though some ISP-locked units use a unique password printed on the device label. Arris and Motorola cable modems often use admin / password or admin / motorola as defaults. Zyxel devices may use admin / 1234 or credentials printed on the unit's sticker. Always check the label on the back or bottom of your device first, as ISPs frequently customize these credentials before deployment.

Once logged in, you can manage your Wi-Fi name (SSID), wireless password, DHCP range, port forwarding rules, firewall settings, and more. Note that 192.168.100.27 is a host address within this subnet — it is assigned to a connected device, not to the router itself. Only one device on your network should hold this address at any given time to avoid IP conflicts.

What Is 192.168.100.27 and How Is It Assigned?

The address 192.168.100.27 is a valid host IP within the 192.168.100.0/24 network, which supports up to 254 usable host addresses (from 192.168.100.1 to 192.168.100.254). The address 192.168.100.27 is typically assigned in one of two ways:

• DHCP (Dynamic Assignment): Your router's built-in DHCP server automatically hands out addresses from a configured pool. If your pool starts at 192.168.100.2 or higher, the 27th device to connect may receive 192.168.100.27. This assignment is temporary and may change when the device reconnects after a lease expiry.
• Static Assignment: A network administrator manually configures a device — such as a printer, IP camera, NAS drive, or smart home hub — to always use 192.168.100.27. This ensures the device is always reachable at the same address, which is important for port forwarding and device management.

Because the 192.168.100.x subnet is used by ISP-provisioned hardware from Huawei, Arris, Motorola, and Zyxel, you are most likely to encounter 192.168.100.27 in a home broadband environment where the modem-router combo was supplied by your internet service provider. This is a fully private address per RFC 1918, meaning it is never routable on the public internet and is only visible within your local network.

If You Cannot Reach Your Router from 192.168.100.27

If you are having trouble accessing your router's admin panel while your device shows the IP 192.168.100.27, follow these diagnostic steps:

1. Verify your gateway address: On Windows, open Command Prompt (Start > type cmd > press Enter) and run ipconfig /all. Look for the Default Gateway field. It should read 192.168.100.1. On macOS, go to System Settings > Network > your connection > Details. On Android or iOS, tap the info icon next to your Wi-Fi network and look for the Gateway or Router field.
2. Check your connection: Make sure your device is connected to the correct Wi-Fi network or is plugged in via Ethernet. If you are on a different network, you will not be able to reach 192.168.100.1.
3. Try a different browser: Some browser extensions or security settings can block local IP access. Try opening an incognito/private window or a different browser entirely.
4. Disable VPN software: Active VPN connections reroute your traffic and can prevent access to local gateway addresses like 192.168.100.1. Temporarily disable any VPN and try again.
5. Power cycle your modem-router: Unplug the device from power, wait 30 seconds, then plug it back in. Wait up to 2 minutes for it to fully restart before attempting to access the admin panel again.

If none of these steps work, your router's default gateway may have been changed from 192.168.100.1 to a different address. Use the ipconfig /all command to find the correct current gateway, or check our guide to find your router IP address.

Router Brands That Use the 192.168.100.x Subnet

The 192.168.100.0/24 subnet — and by extension, host addresses like 192.168.100.27 — is most commonly encountered with the following router and modem-router brands:

• Huawei: Huawei's HG and EchoLife series modem-routers, widely deployed by ISPs across Europe, Asia, Africa, and the Middle East, frequently use 192.168.100.1 as their default gateway. If your device shows 192.168.100.27, a Huawei gateway is a very likely source.
• Arris: Arris SURFboard and TG-series modem-routers, commonly provided by Comcast/Xfinity, Spectrum, and other North American ISPs, use the 192.168.100.x subnet. The admin panel is accessible at 192.168.100.1.
• Motorola: Motorola cable modems and modem-router combos (including the SB and MG series) have long used 192.168.100.1 as their default gateway, making the 192.168.100.x range a hallmark of Motorola-equipped networks.
• Zyxel: Zyxel's DSL and cable gateway devices, deployed by ISPs in Europe and Asia-Pacific, use 192.168.100.1 as a default gateway on many models, placing connected devices in the 192.168.100.x range.
• Ubee: Ubee interactive modem-routers, used by ISPs such as Virgin Media and Ziggo, also operate on the 192.168.100.x subnet with a gateway of 192.168.100.1.
• Ambit Microsystems / Askey: These OEM manufacturers produce ISP-branded modem-routers that commonly default to the 192.168.100.x subnet.

If your device has been assigned 192.168.100.27, it is very likely connected to one of the above devices acting as your network gateway.

Router Username and Password List

How to Change Your Wi-Fi Password on a 192.168.100.x Network

Securing your wireless network is essential, and if your device is on the 192.168.100.27 address, your router's admin panel is your starting point. Here is how to change your Wi-Fi password on devices that use the 192.168.100.x subnet:

1. Open a web browser and navigate to http://192.168.100.1.
2. Log in with your administrator credentials. For Huawei devices, try admin / admin. For Arris and Motorola, try admin / password. For Zyxel, try admin / 1234. Always check the label on your device for ISP-customized credentials.
3. Once inside the admin panel, look for a section labeled Wireless, Wi-Fi Settings, or WLAN.
4. Locate the WPA2 Key, Wireless Password, or Pre-Shared Key field and enter your new, strong password. Use a mix of uppercase and lowercase letters, numbers, and symbols — at least 12 characters long.
5. Save your changes. Your router will apply the new password, and all connected devices will need to reconnect using the updated credentials.

Never leave your router on its factory-default password, especially on ISP-provisioned hardware like Huawei, Arris, or Motorola units, as these defaults are widely published and represent a significant security risk.

How to Factory Reset Your Router on a 192.168.100.x Network

If you have forgotten your admin credentials or your router is misbehaving, a factory reset will restore all settings — including the default gateway of 192.168.100.1 and the default username/password — to their out-of-box state. Here is how to perform a factory reset on the most common brands associated with the 192.168.100.x subnet:

• Huawei Modem-Routers: Locate the small Reset pinhole button on the back or bottom of the device. With the router powered on, use a straightened paperclip or pin to press and hold the button for 10–15 seconds until the indicator lights flash or change color. Release the button and wait for the device to reboot (approximately 2 minutes). The gateway will revert to 192.168.100.1.
• Arris Modem-Routers: Press and hold the Reset button (usually recessed on the rear panel) for 15–30 seconds using a pin. The device will restart automatically. Default credentials will be restored — check the device label for the ISP-specific defaults.
• Motorola Cable Modems/Routers: Hold the Reset button on the rear of the unit for 10 seconds until the lights cycle. The device will reboot and restore factory settings, including the 192.168.100.1 gateway address.
• Zyxel Gateways: Press and hold the Reset button for 10 seconds. Some Zyxel models require you to hold the button while the device is powered on, then release after the Power LED blinks. The device will reboot with factory defaults.

Important: A factory reset will erase all custom settings, including your Wi-Fi name, password, port forwarding rules, and any static IP assignments (such as a manually configured 192.168.100.27). Make sure to note down your current settings before performing a reset if you want to restore them afterward.

Assigning 192.168.100.27 as a Static IP Address

In some scenarios, you may want to permanently assign 192.168.100.27 to a specific device on your network — for example, a network printer, IP security camera, smart home controller, or a home server. There are two ways to do this:

Method 1: DHCP Reservation (Recommended)

Log in to your router's admin panel at http://192.168.100.1 and navigate to the DHCP or LAN settings section. Look for an option called DHCP Reservation, Static Lease, or Address Binding. Enter the MAC address of the device you want to fix at 192.168.100.27 and assign that IP to it. From that point on, the router will always hand out 192.168.100.27 to that specific device, even after reboots.

Method 2: Manual Static IP on the Device

On the device itself, configure the network adapter to use a static IP instead of DHCP. Set the following values:

• IP Address: 192.168.100.27
• Subnet Mask: 255.255.255.0
• Default Gateway: 192.168.100.1
• DNS Server: 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare), or your ISP's DNS

Be sure to choose an address outside your router's DHCP pool to avoid conflicts. For example, if your DHCP pool runs from 192.168.100.100 to 192.168.100.200, then 192.168.100.27 is safely outside that range and can be used as a static address without risk of collision.

Related IP Addresses in the 192.168.100.x Subnet

The 192.168.100.0/24 subnet contains 254 usable host addresses. While 192.168.100.27 is a host address assigned to a connected device, the following related IPs in this subnet and beyond are also commonly referenced:

• 192.168.100.1 — The default gateway for this subnet, used by Huawei, Arris, Motorola, Zyxel, and Ubee modem-routers as their admin login address.
• 192.168.100.2 – 192.168.100.26 — Host addresses typically assigned by DHCP to the first devices that connect to the network.
• 192.168.100.28 – 192.168.100.254 — Additional host addresses available within the same subnet for other connected devices.
• 192.168.100.255 — The broadcast address for this subnet; not assignable to any device.

If you are looking for other commonly used default gateway addresses outside this subnet, you may also want to explore:

• 192.168.1.254 — Used by some D-Link, Thomson, and Actiontec routers.
• 192.168.8.1 — A common default for Huawei mobile Wi-Fi (MiFi) hotspot devices.
• 192.168.0.1 — One of the most widely used default gateways across many router brands.
• 10.0.0.1 — A common default gateway for Xfinity/Comcast gateways and some Apple routers.

Frequently Asked Questions About 192.168.100.27

What does it mean if my device shows 192.168.100.27 as its IP address?

It means your device has been assigned the host address 192.168.100.27 within the 192.168.100.0/24 private network. This typically happens when your router — most likely a Huawei, Arris, Motorola, or Zyxel modem-router with a gateway of 192.168.100.1 — has automatically assigned this address to your device via DHCP. It is a completely normal and functional private IP address.

Can I use 192.168.100.27 to log in to my router?

No. The address 192.168.100.27 is a host address assigned to a device on your network, not the router's admin interface. To access your router's admin panel, you need to navigate to the default gateway address, which on the 192.168.100.x subnet is 192.168.100.1. Type http://192.168.100.1 into your browser's address bar to reach the login page.

Is 192.168.100.27 a public or private IP address?

192.168.100.27 is a private IP address, defined under RFC 1918. It is part of the 192.168.0.0/16 private address block and is only reachable within your local network. It is never visible on the public internet. Your router uses Network Address Translation (NAT) to map this private address to your public IP when communicating with external servers.

Why does my ISP-provided router use the 192.168.100.x range instead of 192.168.1.x?

ISPs that deploy modem-router combos from brands like Huawei, Arris, and Motorola often choose the 192.168.100.x subnet to avoid conflicts with secondary routers that customers may connect behind the gateway. Since most consumer routers default to 192.168.1.x or 192.168.0.x, using 192.168.100.x for the ISP gateway reduces the chance of subnet overlap when a customer adds their own router in bridge or DMZ mode.

How do I find out what device is using 192.168.100.27 on my network?

Log in to your router's admin panel at http://192.168.100.1 and navigate to the DHCP Client List, Connected Devices, or LAN Hosts section. This will show you a table of all devices currently connected to your network, including their assigned IP addresses and MAC addresses. Find the entry for 192.168.100.27 to identify which device holds that address. Alternatively, on Windows, you can run arp -a in Command Prompt to see a list of IP-to-MAC address mappings on your local network.

What should I do if there is an IP conflict with 192.168.100.27?

An IP conflict occurs when two devices on the same network are assigned the same address — in this case, 192.168.100.27. This can happen if you have manually set a static IP of 192.168.100.27 on one device while the router's DHCP server also assigns it to another. To resolve this, either change the static IP on one of the devices to a different address (e.g., 192.168.100.28), or configure a DHCP reservation in your router's admin panel at 192.168.100.1 to permanently bind 192.168.100.27 to a specific device's MAC address and exclude it from the dynamic pool.