I've had a Dell H625CDW for a little over a year now. It's been problematic to say the least. I noticed there was a new firmware release, so in hopes that it might solve the strange problems I've had with this printer, I decided to update the firmware.
The firmware update appears to have completed just fine. The printer works as expected for printing. However, I cannot make any changes to the settings of the printer now. Any time I try to "save" printer setting change via the webpage, I get a "unauthorized access" message on a white page.
How can I fix this?