If you have an AVR-591 and have been hesitant to connect it to the internet, the coast is now clear. However, with legacy hardware, caution is always advised. Here is the safest way to ensure your unit is running the patched firmware:
Recently, users report that a critical firmware issue affecting the unit has finally been patched, restoring the receiver to full functionality and saving many units from the recycling bin. denon avr591 firmware update patched
Unlike higher-end or newer models, the AVR-591 was designed as an entry-level receiver. If you have an AVR-591 and have been