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Hello All   I have 6 x SLC5/03s that I am trying to connect to a windows PC that is running FactoryTalk View Studio Enterprise. To do this I have connected Serial to Ethernet gateways (MGATE EIP3170) to each CH0 serial port of the SLC5/03s. The EIP3170s are connected to a switch that has the windows PC connected to it . The EIP3170s and the PCs are all on the same subnet. In FT View SE I have added 6 x Serial DF-1 drivers for each SLC5/03. When I add the drivers, I can see three of the SLC5/03s. If I try to add any more Serial DF-1 drivers I loose communication with all of the SLC5/03s and the diagnostic window in FT View SE I see the following error message: DF1: Failed to open '\\.\COMx', error = 0x000005AA. When I phoned Rockwell Automation what this error message means they told me it is a "Fatal access error" which means that the EIP3170s are incompatible with FT Linx.  Does anyone know if it is actually possible to connect more than 3 EIP3170s to FT Linx? I am sure I have seen an article on how to do this but I can't seem to find it again