![HP ScanJet Pro 4500 fn1 Network Scanner - SMTP server connection fails when using "Scan to Email" | HP® Support HP ScanJet Pro 4500 fn1 Network Scanner - SMTP server connection fails when using "Scan to Email" | HP® Support](https://support.hp.com/wcc-assets/document/images/1010/c05992629.png)
HP ScanJet Pro 4500 fn1 Network Scanner - SMTP server connection fails when using "Scan to Email" | HP® Support
HP Officejet Pro 8600 Network connection error message in EW... - Page 2 - HP Support Community - 1094547
HP CPAv2 showing error message on all devices: "The device failed to establish a connection with the server"
![openssl - Error message "The format of the file is invalid" when attempting to import certificate on HP printer - Server Fault openssl - Error message "The format of the file is invalid" when attempting to import certificate on HP printer - Server Fault](https://i.stack.imgur.com/bDmrk.png)