Upgraded to firmware v1.8.x.x or higher now I can not login anymore

when you are upgrading from a firmware lower than v1.8.0.0 you have to restore defaults and start configuring the device again.

You can NOT use a old backup file, as your router will probably malfunction then.


You can restore the defaults by pressing the restore button while power is already on, and holding it for ~5 seconds.

Second way to restore is to enter NO login name, and as password 'admin' and choose to restore from the websetup.