HP Photosmart Printer drops out using BT Homehub 3

Many months ago I purchased an HP Photosmart 5520 Wireless printer/scanner to use in the home office. Initially it ran very well but as we were doing some work on the house I simply plugged it in whenever I happened to need it. Once the building work had finished the printer was installed in a more permanent position and the problems started to reveal themselves.

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