Hi @Compop,
Welcome to the HP Support Community.
Thank you for posting your query. I will be glad to help you.
I understand you have trouble connecting your HP ENVY 6055e All-in-One Printer to the Wifi network. Please let us know if you have changed the Wifi provider or changed any settings.
While you are trying to provide the details, Please try to perform the Factory reset and Smart App re-installation and let me know if this helps.
Restore the printer to the original factory defaults:
1. Lift the cartridge access door to expose the cartridge area.
2. While the cartridge access door is open, press and hold (the Power button and Wireless button on the back of the printer for three seconds.
3. Please uninstall the HP Smart app --> restart the Device, Wi-Fi router and printer --> install it back and add the printer
I hope this helps.
Take care and have a good day.
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VikramTheGreat
HP Support