1SPT15xx, SPT17xx or SPT18xx Network Sync Fails over Internet Connection

Article ID: 64343450


The SPT15xx, SPT17xx or SPT18xx never connects to my Network, which is attached to the Internet.


SPT15xx, SPT17xx and SPT18xx Series Terminals

Root Cause

The router does not allow traffic on UDP and TCP ports 14237 and 14238.


Ports 14237 and 14238 need to be opened on the router for the IP address of your target PC.

Contact manufacturer of router or network administrator for information on how to open these ports.