If you still cannot access the management page after a reset, contact Viettel customer support at for assistance.
If you are a Viettel broadband customer and seeing the error "không vào được quản lý modem wifi Viettel" (cannot access the Viettel wifi modem management page), you are not alone. This is a common issue when users try to log into 192.168.1.1 or 192.168.1.254 (the default gateway for Viettel modems) to change their WiFi password or check settings. không vào được quản lý modem wifi viettel
Can't Access Viettel Modem Management? Here's How to Fix It. If you still cannot access the management page
Here are the most common reasons and fixes for this problem: không vào được quản lý modem wifi viettel