Answer :
Step 1 If you access the LAN in Wi-Fi mode inside your enterprise, check the Wi-Fi network
connection and verify that the network address is correct.
Step 2 If you access the enterprise server through a public network, check the cell data network
settings and verify that you can access the carrier network properly.
Step 3 Verify that the IP address and port number configured for the enterprise server are correct. If
you are not sure about the configuration, contact the administrator.
Step 4 If the fault persists after the preceding operations, the enterprise server may be faulty
