New Hub 4 installed successfully. Laptops, Alexa, mobiles all connect via Wifi. HP Printer F4580 cannot make WiFi connection. Worked fine with previous Hub. I have deleted printer in Windows 10. Cleaned out all folders of printer files. Loaded new latest drivers. Made connection using USB. When I try and get WifI connection the installation says "diagnostic error". I have tried many times. Wireless network report for printer says "No Filtering FAILED". I have accessed the router using IP address 192.168. 0.1 and Wireless MAC filtering is DISABLEed.
I have spend many many hours scanning websites, deleting printer, resetting printer to factory settings, etc etc. No thing works. Can any one help.
Have you reset the networks settings in the affected devices?
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I reset HP F4580 printer to manufacturing settings, I unplugged from back, I left unplugged over night. I removed printer drives etc from laptop. I set up a 2.4GHz SSID, rebooted Hub. I did a re-install of printer. Same problem. Printer finds the network but fails to connect.