After 6 months, my modem no longer recognizes my router and desktop PC. The only device that I can connect to it is my macintosh laptop.
I have tried:
Strangely enough, only 2 out of 3 ethernet cords work to connect with my laptop, and none have worked to connect to my PC. When I connect the 2 "working" ethernet cords to my wireless router, it does not recognize any internet connection and my modem does not show any internet activity. Therefore I cannot even use my wireless router as a switch to try to connect my laptop through the router with the two ethernet cords.
Everything on the router works except for the internet. The "non-working" ethernet cable can be used to connect the PC/laptop to the router... but cannot be used to connect the modem to any device.
I am unaware of any power outages to cause this, and I am so confused at how to determine what is the cause. Is it the ethernet port on the modem, PC, or router? Why are only some cords working? Could there be multiple partial failures with some things still working with each other? I don't know where and how to begin.
Internal Ethernet port on a ASUS m5a97 r2.0 motherboard
Modem: Arris SURFboard SB6141
Router: TP-Link AC1200
I have tried:
Restarting my router
Restarting my modem
Restarting both my router and modem (turning on my router first)
Connecting my modem directly to my PC
Using command prompt to issue ipconfig /flushdns, /registerdns, /release, /renew
Trying different ethernet cords
Strangely enough, only 2 out of 3 ethernet cords work to connect with my laptop, and none have worked to connect to my PC. When I connect the 2 "working" ethernet cords to my wireless router, it does not recognize any internet connection and my modem does not show any internet activity. Therefore I cannot even use my wireless router as a switch to try to connect my laptop through the router with the two ethernet cords.
Everything on the router works except for the internet. The "non-working" ethernet cable can be used to connect the PC/laptop to the router... but cannot be used to connect the modem to any device.
I am unaware of any power outages to cause this, and I am so confused at how to determine what is the cause. Is it the ethernet port on the modem, PC, or router? Why are only some cords working? Could there be multiple partial failures with some things still working with each other? I don't know where and how to begin.
Internal Ethernet port on a ASUS m5a97 r2.0 motherboard
Modem: Arris SURFboard SB6141
Router: TP-Link AC1200
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