What should I do if my printer isn’t connecting properly?
Perform a self-diagnostic test by going to Setup > Self Diagnostics > Run Wireless Test or Run Fax Test depending on your issue. This can help identify and resolve various connectivity problems (Page 9, Page 10).
From the official HP Color Laserjet Pro Mfp 4301 4303dw Fdn Fdw Printer manual, page 11
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