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Author Topic: wifi goes down when connect router to switch  (Read 153 times)

mellis102

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wifi goes down when connect router to switch
« on: December 29, 2017, 06:47:37 PM »

I hope someone can help me here. I have a cable modem which is connected to my router. I then have a ethernet cable which connects my router to a switch in my house that connects various hardwired ethernet outlets throughout the house.

Everything was working fine for months since I set the system up. Now if I have the switch connected to the router, I have no access to the internet (either hardwired or wifi). I can't even connect to the router through wifi via the router's ip address. As soon as I disconnect the switch, the wifi works fine, but of course, none of my hardwired outlets work.

I have done powercycling the modem and router, reset the router to factory settings, have the latest firmware, etc. Nothing changes the situation.

Any ideas? Thanks!
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FurryNutz

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Re: wifi goes down when connect router to switch
« Reply #1 on: December 29, 2017, 09:37:19 PM »

Link>Welcome!

  • What Hardware version is your router? Look at sticker under the router case.
  • Link>What Firmware version is currently loaded? Found on the routers web page under status.
  • What region are you located?

Internet Service Provider and Modem Configurations
  • What ISP Service do you have? Cable or DSL?
  • What ISP Modem Mfr. and model # do you have?

What is the Mfr and model of this switch?

Swap LAN cables beween the router and switch and tried different ports?
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Cable:200mb/10Mb>Motorola MB7420>COVR3902>HP 24pt Gb Switch. 3xDGL-4500s,DIR-857,835,827,815,890L,880L,868L,865L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L and 960L.
Go Here>Router Troubleshooting

happyhere

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Re: wifi goes down when connect router to switch
« Reply #2 on: December 31, 2017, 03:13:27 AM »

you might be using a managed switch with default IP of 192.168.0.1. (e.g tplink 105e ).

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FurryNutz

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Re: wifi goes down when connect router to switch
« Reply #3 on: December 31, 2017, 11:34:56 AM »

Hopefully the poster will come back and let us know which model he's using.  ::)
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Cable:200mb/10Mb>Motorola MB7420>COVR3902>HP 24pt Gb Switch. 3xDGL-4500s,DIR-857,835,827,815,890L,880L,868L,865L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L and 960L.
Go Here>Router Troubleshooting