Inconsistent connection of devices on switch

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Inconsistent connection of devices on switch
Inconsistent connection of devices on switch
2021-12-29 17:41:05 - last edited 2022-01-03 16:59:09
Model: TL-SG1005D
Hardware Version:
Firmware Version:

I have bought this switch as there is only one port on my Gigaclear fibre modem. I have connected that port to one port on the switch and my Linksys wireless node and my PC to the other ports, all with ethernet cables. However, I cannot get the wireless node and the PC to both connect to the internet, only one or the other, even though the LAN lights are green on all three ports in use. I have read the article on this from your FAQs but do not understand it. What am I doing wrong?

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Re:Inconsistent connection of devices on switch-Solution
2022-01-02 23:51:46 - last edited 2022-01-03 16:59:09

@Lordwanswell 

 

You should test that on your own.

If your Plusnet router has an ethernet port dedicated for a broadband connection it probably would do the job.

But I will recommend you to buy a new decent router. You can alway use the switch after the router if you need extra ethernet ports.

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Re:Inconsistent connection of devices on switch
2021-12-30 03:04:54

@Lordwanswell 

 

It's quite possible that the reason is your Gigaclear fibre modem is in bridge mode.

Thus only one device connected to its sole ethernet port can have an Internet access.

You can easily check that - connect the PC to the Gigaclear fibre modem directly and check the PC IP address.

If the PC IP address is public IP address then that's the case and you'll need a router to accomplish what you want.

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Re:Inconsistent connection of devices on switch
2021-12-30 10:02:37
Thanks for this, it sounds reasonable, although I have not checked the IP address yet. Sunds like I was given poor advice by Gigaclear; I needed a router not an unmanaged switch.
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Re:Inconsistent connection of devices on switch
2021-12-30 18:27:54

@Lordwanswell 

Thanks, have checked it but it means nothing to me. What is a public IP address?

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Re:Inconsistent connection of devices on switch
2021-12-30 19:10:41 - last edited 2021-12-31 03:18:45

@Lordwanswell 

 

Private (internal) addresses are not routed on the Internet, and no traffic can be sent to them from the Internet; they are only supposed to work within the local network.
Private addresses include IP addresses from the following subnets:

Range from 10.0.0.0 to 10.255.255.255 — a 10.0.0.0 network with a 255.0.0.0 or /8 (an 8-bit) mask
Range from 172.16.0.0 to 172.31.255.255 — a 172.16.0.0 network with a 255.240.0.0 or /12
A 192.168.0.0 to 192.168.255.255 range, which is a 192.168.0.0 network masked by 255.255.0.0 or /16
A special range 100.64.0.0 to 100.127.255.255 with a 255.192.0.0 or /10 network mask; this subnet is recommended according to rfc6598 for use as an address pool for CGN (Carrier-Grade NAT)

 

So, if the PC IP address is not in these ranges then it is Public.

 

The other way to check if your Gigaclear fibre modem is in bridge mode is to open this URL in a browser: https://www.whatismyip.com/

Then compare the IP address from the browser with the PC IP address and if they match then your Gigaclear fibre modem is in bridge mode.

 

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Re:Inconsistent connection of devices on switch
2022-01-02 21:54:30

@Lordwanswell 

Thanks again. Yes the public IP address is the same as my PC IP address, so conclude my router is in bridge mode. With my Linksys Velop hub wired immediately downstram of the router, and the switch downstream of that, everything appears to be working. I guess that the alternative would be to buy a router to put immediately after the modem to give more flexibility and bin the switch? I have my old Plusnet router, would that be suitable?

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Re:Inconsistent connection of devices on switch-Solution
2022-01-02 23:51:46 - last edited 2022-01-03 16:59:09

@Lordwanswell 

 

You should test that on your own.

If your Plusnet router has an ethernet port dedicated for a broadband connection it probably would do the job.

But I will recommend you to buy a new decent router. You can alway use the switch after the router if you need extra ethernet ports.

If this was helpful click on arrow pointing upward If this solves the issue click the star to mark as "Recommended Solution" and help others
Recommended Solution
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Re:Inconsistent connection of devices on switch
2022-01-03 11:25:39
Thanks for your helpful advice on this.
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