My new R2

[Emmanuel]

Hi, I just bought a used Netduma R2. The first thing I did was perform a factory reset. I can't get my Netduma to work, and here's the problem: 1. The 2.4 and 5GHz WiFi LEDs are on as soon as I plug in the Netduma. I connect via phone and can access the WiFi. Then I try to log in to the duma os app, entering the admin password, but it gives me an error message saying "incorrect credentials." 2. Every time I try to log in to the WiFi from my PC, the WiFi LEDs immediately turn off and the WiFi no longer works. 3. If I try to log in via Ethernet cable, the WiFi LEDs turn off immediately, but I can access the internet via cable. I try to log in to 192.168.77.1 or http://dumaos, but the website doesn't load... Do you have any help for me?

[Netduma Fraser]

There are a couple of scenarios here:

1. You've not factory reset the router correctly which is why the credentials are showing that they're incorrect - it's the button that you'll need a thin object like a pin to press, hold for 30 seconds, release, wait 4 minutes then attempt access via the mobile app only. 
2. The WiFi turning off when you try to access via a web browser indicates either the power it's getting isn't enough - try direct to an outlet if using an extender or try with another adapter if possible. Otherwise you may need to upgrade/downgrade the firmware but you'll need to do #1 for that.
3. The unit is faulty and you should return it to the person you purchased from

[Emmanuel]

Okay, it's also strange that the Wi-Fi doesn't turn on every time I restart Netduma, but only after 10 minutes of being off. If I unplug it for 1 minute and plug it back in, the Wi-Fi doesn't work.

[Netduma Fraser]

17 hours ago, Emmanuel said:

Okay, it's also strange that the Wi-Fi doesn't turn on every time I restart Netduma, but only after 10 minutes of being off. If I unplug it for 1 minute and plug it back in, the Wi-Fi doesn't work.

Yeah I've not seen that before so I would say it's most likely faulty