LOTS TO CHECK
Check if the LAN cable has been correctly connected, if the SMTP server is ready for communication, if the network settings
such as sub-net mask setting are correct, or if the E-mail address of the destination is correct.
LAN cable has not been connected, or failed to communicate with
the SMTP server. You tried to transmit the document to an incorrect destination address.
A LAN cable is not connected. Check that the LAN cable is connected correctly. The network of the network multifunction
machine and the PC with the IP address of the destination mismatch.Confirm whether the network settings of the PC and the network settings of the network multi-function machine pose a
network-type problem.The network settings in the PC have
not been set correctly.Check the TCP/IP settings of the PC.
The network board of the PC with the IP address of the destination has failed. Replace the network board or the PC. Power is not being supplied to the HUB. Supply power to the HUB. A cross-type network cable is not being used for Peer-to-Peer connection.
Use a cross-type cable. The network cable is disconnected. Replace the network cable. Network load in the destination PC is
too high. Check whether a mail with large size data is received in the destination PC, or a large file is downloaded from the Web.
There is too much transmission data. If the scan resolution is set high, scan fewer pages. The access is limited by the firewall
(Windows Firewall) of the network connection in the PC.
Consult with the network administrator, and change the firewall (Windows Firewall) settings of the network connection.
Btw, I’m available to help over the phone in case u need at
https://www.6ya.com/expert/normanj_7893313f0751935f
What operating system are you using? Is the printer connected directly to the computer or via network, also is it wireless or cabled.
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