hikvision 7608

I recently updated the firmware on my DS-7608NI-I2/8P but obviously stuffed something up somewhere. After the firmware update completed, I went through the setup process of the username & password, and somehow the username got set to blank even though I'm sure I left it as 'admin'. So now when...

Hope this is not an Off-Topic" post but it is an odd thing, rather long due to the explanation. I'd like to know if anyone else has had this happen. NVR stops functioning when connected via HDMI "CEC" to a Smart Sony TV and Denon Reciever. Gear: Hik NVR 8 port POE - 2 Hikvision cameras NEW...