I'm having problems with my internet speed when connected to a PLC. I'm connected to the PLC with an ethernet cable and to the internet via WiFi. The LAN adapter has a static IP set but I don't get why it slows down the WiFi connection. I've tried using a USB LAN adapter but it makes no difference, so I'm thinking it might be an OS problem. I'm using Win 7 Home Premium SP1.

I doubt that the PLC itself is the problem.

If anyone had a similar problem I would very much appreciate any advice.

Cheers, V.

  • So your WiFi slows down or has issues only when you connect to the PLC or is it any time you have the wired LAN connected?
    – txtechhelp
    Jan 24 '15 at 7:34
  • Hi, it only slows down when I'm connected to the PLC. I'm thinking it might be due to the static IP address that I need to enter for the wired connection to the PLC, but I access the internet through WiFi and I don't set an IP address for the WiFi.
    – vandelfi
    Jan 24 '15 at 14:09
  • It sounds like you might just need to set your WiFi's NIC priority over your LAN's: levynewsnetwork.wordpress.com/2011/12/01/… ...
    – txtechhelp
    Jan 25 '15 at 1:51
  • I did what you said and it seems to be working. Thank you very much for the help. Is there any way to upvote your comment or close the question?
    – vandelfi
    Jan 26 '15 at 10:24

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