I think it is probably an Ethernet cable, but can't say for sure. When I had 2013, our outside IT guy downloaded 2016 (first time he downloaded Timeslips) and it was running slow, but we thought it was the new Timeslips version. He also downloaded 2017 when it was available and it runs the same, if not worse. He's checked everything once or twice as far as the computer/server. If you have any suggestions he could do on his end, that might help.
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