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user_123e20
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Wednesday, March 8th, 2023 12:45 AM

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Unmanaged Switch - NO INTERNET FROM SWITCH TO REST OF CAT6 Wiring

I just recently upgraded to the Xfi Gateway XB8. I have a Netgear Orbi system with 5 Satellites. I have the latest Orbi Mesh System. The Modem is in Bridge Mode and the Orbi Router is handling all of routing capabilities. The problem is I have an unmanaged switch that is connected directly to one of the ports from the Netgear Orbi Router that feeds multiple cat6 ports in my home, but I have no internet connection with those ports that are off of that switch. Does anyone know what is going on and how to correct this issue? 

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2 years ago

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flatlander3

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1.5K Messages

2 years ago

Should work.  You didn't say what the switch model was, but is one of the ports designated as "uplink"?  Some unmanaged switches do that.  1st port or they mark it in some way.  Sometimes the first two ports -- one being normal straight through, the other for crossover cable connections.  Don't use both at the same time.

Another one is sometimes a crossover cable gets mixed up in your Ethernet cable pile.  You plug one of those into something that does auto MDI/MDIX (swapping twisted pair rx/tx via hardware), and the pairs can continually swap back and forth on some stuff.  Bad cable will do that too.

Similarly, auto-speed negotiation from 10/100/1Gbps/2.5Gbps, can end up bouncing, then you get nothing.  Bad cable again.

I guess I'd try to verify the switch first.  Connect Ethernet from the switch to the "gateway set in bridge mode" all by itself, plug a laptop into the switch on one of the other ports, then reboot boot the laptop and power cycle gateway.  At least see if the laptop works "stand alone" style, and make sure the switch works.  They go bad sometimes.  Other times they go insane and just spew frags and runts.

Silly question perhaps -- but are you out of DHCP addresses in your DHCP pool on the orbi?  Maybe take a look at the pool and see if you got enough to cover the gear connected.  Make that as big as possible.  Sometimes it's surprising how much stuff you got, and if things like phones are doing mac spoofing, they can take up quite a few active leases as they enter, then leave or sleep, then enter the network again. 

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user_123e20

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@flatlander3​ 

thank you for the response and for taking the time to review my issue. I believe I have a Trendnet - TEG - S24g 24-port unmanaged gigabit switch…I will perform the specific instructions you have outlined in your response back to me this afternoon.

thank you again!

2 years ago

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user_123e20

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5 Messages

I confirm that it is the correct switch

I also performed a reboot and connected my laptop via an Ethernet cable to the switch and it worked….now everything seems to be running fine…but it does this a lot (loses connection) and wondering if it is a bigger issue with xfinity and their service. 

thank you again.

2 years ago

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flatlander3

Problem Solver

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1.5K Messages

@user_123e20​ Xfinity service perhaps.   

I've got a long running issue in my location where the IPV6 servers just aren't there sometimes, so it works, until there's a lease renewal that has to happen, then it sometimes doesn't.  This will bone the internet connectivity for internal clients, until the IPV6 servers magically reappear.

Don't know what your orbi is running into, but something like that could possibly be going on since you're just bridge mode and orbi is doing the networking.  Probably the best place to ask about orbi is on their forums.  Other folks might be seeing something similar with Xfinity, and might even have a work around for issues. 

2 years ago

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user_123e20

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5 Messages

Will do and thank you again 

2 years ago

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zandor60657

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204 Messages

Is this it?  24-Port Gigabit GREENnet Switch - TRENDnet TEG-S24g  I'm suspicious of that switch.  An unmanaged switch with flow control?  Or maybe it's actually a managed switch?  Sure my main switch has flow control but it's a managed switch and I can turn Tx and Rx flow control on or off on a per port basis.  At any rate that's an unusual feature for an unmanaged switch and also one that can cause trouble.  Do you have any trouble with devices that aren't connected to that switch?

2 years ago

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