On my 7845 networking dies in a funny way:
local access to the web interface is alive, but connectivity to the Internet dies after some time (randomly, from hours to days), restarting the machine helps, also restarting the network interface helps...
The result is that we cannot scan to email or scan to the cloud unless we restart the interface on a daily basis....
Newest firmware (however this problem was there with the 2014 firmware too), tried restoring to the factory settings too - it did not help.
Please help me with this.