If your router’s firmware has an active upgrade section, follow these steps:
If you've lost your login credentials (commonly admin / admin or admin / @HuaweiHgw ) and the default password doesn't work:
Most stable, working files for this model belong to the or V500R020 software lines. Some of the most sought-after, verified stable builds include: DG8245V100R019C10B023 DG8245V100R019C30B050 DG8245V100R020C10B052
Perform a complete factory reset. Hold the physical Reset button on the back of the device with a pin for 10 seconds. Allow the router to reboot and fetch a clean configuration from your ISP network. 3. Double NAT and Failed Bridge Mode