10.0.17.121 router login
To open the admin panel, type 10.0.17.121 into your browser's address bar. If the page does not load, this is probably not the gateway address on your network — see the checks below.
10.0.17.121 router passwords
Where to find them:
- The label on the underside or back of the router — most manufacturers print the default admin username, password and Wi-Fi key there.
- The quick-start card or manual that came in the box.
- Your ISP's account portal, if the device was supplied by them — many set a unique password per line rather than a shared default.
No default username and password pair is recorded for 10.0.17.121, and none should be guessed. Private addresses carry no credentials of their own; only the device currently holding the address does. Check the label printed on its case or underside, the manual or quick-start card, or the documentation supplied by whoever installed it, which is where factory defaults are published.
How to log in to your router
Type 10.0.17.121 into your browser's address bar and press Enter. Type it by hand rather than accepting an autocomplete suggestion, which often fills in a different address you visited before.
If the browser reports that it cannot reach 10.0.17.121, this is not the gateway address on your network. On Windows run ipconfig /all and read the Default Gateway line; on macOS open System Settings, Network, Details, TCP/IP; on Linux run ip route and read the address after "default via".
If the login page loads but rejects your credentials, and you have never changed them, use the defaults printed on the device's label. If they have been changed and nobody knows the new password, a factory reset is the only way back in.
If you do not know the password
If the login is unknown, ask whoever administers the network first, because on a managed network the credentials will have been changed deliberately. A factory reset, usually a recessed button held for several seconds, is a last resort: it erases port forwarding, static leases and firewall rules, and returns the Wi-Fi name and key to the values printed on the label.
10.0.17.121 belongs to 10.0.0.0/8, the largest of the three private ranges set aside by RFC 1918. With a netmask of 255.0.0.0 it spans 16,777,216 addresses, which is why it is the block of choice for corporate and campus networks, ISP-managed customer equipment, carrier gear, VPN address pools and container platforms. In practice it is always carved into much smaller subnets.
Here the working subnet is 10.0.17.0/24: hosts run from 10.0.17.1 through 10.0.17.254, and 10.0.17.255 is the broadcast address. The host number 121 sits in the middle of that span, the region normally handed out by a DHCP server rather than reserved for a gateway. Most people arriving at this address have copied it from a lease table, a connected-devices list or a log entry and want to identify which machine on their own network is using it. A further 106 addresses in this /24 are documented here.
Whois information for 10.0.0.0/8
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2024, American Registry for Internet Numbers, Ltd.
#
NetRange: 10.0.0.0 - 10.255.255.255
CIDR: 10.0.0.0/8
NetName: PRIVATE-ADDRESS-ABLK-RFC1918-IANA-RESERVED
NetHandle: NET-10-0-0-0-1
Parent: ()
NetType: IANA Special Use
OriginAS:
Organization: Internet Assigned Numbers Authority (IANA)
RegDate: 1995-06-23
Updated: 2013-08-30
Comment: These addresses are in use by many millions of independently operated networks, which might be as small as a single computer connected to a home gateway, and are automatically configured in hundreds of millions of devices. They are only intended for use within a private context and traffic that needs to cross the Internet will need to use a different, unique address.
Comment:
Comment: These addresses can be used by anyone without any need to coordinate with IANA or an Internet registry. The traffic from these addresses does not come from ICANN or IANA. We are not the source of activity you may see on logs or in e-mail records. Please refer to http://www.iana.org/abuse/answers
Comment:
Comment: These addresses were assigned by the IETF, the organization that develops Internet protocols, in the Best Current Practice document, RFC 1918 which can be found at:
Comment: http://datatracker.ietf.org/doc/rfc1918
Ref: https://rdap.arin.net/registry/ip/10.0.0.0
OrgName: Internet Assigned Numbers Authority
OrgId: IANA
Address: 12025 Waterfront Drive
Address: Suite 300
City: Los Angeles
StateProv: CA
PostalCode: 90094
Country: US
RegDate:
Updated: 2012-08-31
Ref: https://rdap.arin.net/registry/entity/IANA
OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: ICANN
OrgAbusePhone: +1-310-301-5820
OrgAbuseEmail: abuse@iana.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
OrgTechHandle: IANA-IP-ARIN
OrgTechName: ICANN
OrgTechPhone: +1-310-301-5820
OrgTechEmail: abuse@iana.org
OrgTechRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN
Other documented addresses in 10.0.17.0/24
The 10.0.17.0/24 subnet runs from 10.0.17.1 to 10.0.17.254, with 10.0.17.255 reserved as the broadcast address. These are the addresses in it we hold router login details for.
Most looked up in this subnet
All addresses we cover here
107 addresses in this subnet have a page; the most looked-up are listed here.