Hello imdr,

can you please try the suggested solution from the English Community Forum?

http://en.community.dell.com/support-forums/peripherals/f/3528/t/19641524

"...First try reading... Troubleshooting Network Problems on the Dell V525w and V725w AIO Inkjet Printers and Troubleshooting Setup for the Dell 525w and 725w AIO Inkjet Printers If that does not work, I suggest running Delete Print Jobs to remove stuck print job(s) from the queue, then restart your computer. Make sure the printer is not USB cable connected. Start, control panel programs and features, your printer, uninstall. Restart your computer. Make sure the printer was removed. Manual Printer Driver Removal On the printer, click on the wrench, look for reset the printer adapter back to factory settings and reset it. Then reinstall the printer like it was a new printer. Remember virus programs and firewalls will block communications. Rick..."

With kind regards,

Florian