A: The previous owner or technician changed it. You must perform a hard reset (Option 2 above) to restore factory defaults.
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Struggling to log into your Viettel router? Can’t find the default username and password on the sticker? A: The previous owner or technician changed it
You are not alone. Whether you just installed a new Viettel fiber optic connection (FTTH) or need to change your WiFi password for security, knowing the correct login credentials is the first step. username wifi viettel