How to bypass router and run ethernet straight to modem

My steam went down recently, and one of the suggestions for troubleshooting was to bypass my router when using wired ethernet. I have no idea how to do this, because our modem has 1 ethernet port, a usb type B, and a power plug in. The 1 ethernet port is used by our router.
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  1. EpicOrBust said:
    My steam went down recently, and one of the suggestions for troubleshooting was to bypass my router when using wired ethernet. I have no idea how to do this, because our modem has 1 ethernet port, a usb type B, and a power plug in. The 1 ethernet port is used by our router.


    Running direct to the modem is suggested just as a test, to isolate the router as being the problem.

    1. You've indicated "steam went down recently". Does anything else work?
    2. To test, unplug the router from the modem, and plug the PC or laptop in to that port on the modem. You may have to reboot one or both.

    See what happens.
  2. Make sure your firewall is enabled before you start experiments - your PC will be connected directly to the 'Net, with all (bad) guys trying to take over it.

    If your ISP is using PPPoE (e.g. most DSL providers), you might have to set-up your PC properly ("Setup wireless, broadband or dial-up network") for this setup to work, with proper username / password.

    My guts (having a USB port on the modem) are telling me that is the case.
  3. Additionally, only do this for a very short time. This is only to isolate the router as being the potential problem.
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