#2) Generally, for most of the routers, the default username and password is “admin” and “admin”. Some router manufacturers write this information in the manual or on a sticker, but it’s not uncommon for them to leave it out. Would you like to use your existing router with the Technicolor WLAN modem (bridge mode)? Enter the IP address 192. The usable default username is Admin and, the password is also Admin for all Spectrum routers, every time. Technicolor router default login Technicolor TC8717T Default Router Login and Password.