PXG 900 User's Guide - Firmware Version 4.3 - 1/9/2017667. You should see an alert box stating that the import was successful. Click OK.You can now access the gateway using the HTTPS protocol (for example, ).https://192.168.1.1/Ports in UseFor web-based communications with the gateway, TCP Ports 80 (HTTP) and 443 (HTTPS) are enabled by default.For special situations, you may elect to disable one or the other. However, disabling both prevents any web accessto the gateway and is not recommended. You may also choose to change the assigned port number for either.The following ports and protocols are disabled by default. You must elect to enable them and may choose to changethe assigned port number.Port Number Protocol/Use TCP/UDP502 Modbus TCP TCP5150 EMINT Mode - INCOM UDP26501 Modbus (COM1 Pass-thru) TCP26502 Modbus (COM2 Pass-thru) TCP26503 Modbus (Ethernet Pass-thru) TCP