Solved Hi, I am surprised by this . could you guage the reason


Hi, porthos , yes.
This is a desktop? Can you just install a new internal network gigabit adapter that is Win 7 compatible?
USB ethernet adapters are hit-and-miss even with newer operating systems.

What brand and model is this computer?
 

My Computer

System One

  • OS
    Windows 10
Just to see if I'm following this correctly. When you connect your devices directly to the router they work. When you connect the devices to the switch and the switch to the router, two devices work and one doesn't. If I'm correct, is it always the same device that doesn't work or is it what ever device that is plugged into the one port on the switch that doesn't work? If it's whatever device is plugged into the one port then I suspect that the switch is defective.
 

My Computers

System One System Two

  • OS
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec B746
    CPU
    Intel Core i7-10700K
    Motherboard
    ASRock Z490 Phantom Gaming 4/ax
    Memory
    16GB (8GB PC4-19200 DDR4 SDRAM x2)
    Graphics Card(s)
    NVIDIA GeForce GTX 1050 TI
    Sound Card
    Realtek Audio
    Monitor(s) Displays
    Samsung SAM0A87 Samsung SAM0D32
    Screen Resolution
    1920 x 1080
    Hard Drives
    NVMe WDC WDS100T2B0C-00PXH0 1TB
    Samsung SSD 860 EVO 1TB
    PSU
    750 Watts (62.5A)
    Case
    PowerSpec/Lian Li ATX 205
    Keyboard
    Logitech K270
    Mouse
    Logitech M185
    Browser
    Microsoft Edge and Firefox
    Antivirus
    ESET Internet Security
  • Operating System
    Windows 11 Canary Channel
    Computer type
    PC/Desktop
    Manufacturer/Model
    PowerSpec G156
    CPU
    Intel Core i5-8400 CPU @ 2.80GHz
    Motherboard
    AsusTeK Prime B360M-S
    Memory
    16 MB DDR 4-2666
    Monitor(s) Displays
    23" Speptre HDMI 75Hz
    Screen Resolution
    1920x1080
    Hard Drives
    Samsung 970 EVO 500GB NVMe
    Mouse
    Logitek M185
    Keyboard
    Logitek K270
    Browser
    Firefox, Edge and Edge Canary
    Antivirus
    Windows Defender
Hi,parthos, there is no mention , of if the switch is compatible with windows 7. Normally plug and play devices work same in windows 7 and in windows 11. It is just a switch, which should work in both the operating system.
 

My Computer

System One

  • OS
    windows 11pro version 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Inspiron 3910
    CPU
    i5 processor
    Memory
    8 gb
Hi, Just bought the switch and if found defective , can be replaced as it has a three years warranty period. can i try one lastl thing, reset the switch. there is a small hole in the switch, and I think it is for the purpose,but, plug and play devices seldom need a kind of reset.
it is the device, a pc, that is not working if i connect the ethernet jack to the switch, and work if i plug in to the router directly in the fe port. The switch unmanaged has the feature to support 10/100/1000 mbps traffic. So, it should be compatible with windows 7 also,which had a 100 mbps network adapter.
 

My Computer

System One

  • OS
    windows 11pro version 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Inspiron 3910
    CPU
    i5 processor
    Memory
    8 gb
Hi, iko22, thank you very much for the detailed reply. i have not found any physical loop prevention switch. I also heard that unmanaged network switches have no such separate switches.

the next thing i will try to have a quality ethernet wire with jack.


The installation manual is here
which is TP-Link TL SG108 in the example.

If I click on the download for the TP-Link TL SG105 then it takes me directly to the TL SG108. So, I suppose the same manual for both product models. Then maybe the loop prevention switch is only for the TL SG108 model, and isn't actually available for the TL-SG105. Manual does not say.

If you are not seeing this switch, then maybe that is the explanation.

Yes, try the cable. Although, accordingly, if you use the wrong cable, then the network would work at the slower 10/100 Mbps speeds, unless the cable had gone really bad, in which case it might not work at all. You decide.
 

My Computers

System One System Two

  • OS
    Windows 11
    Computer type
    PC/Desktop
    CPU
    AMD Ryzen 5 5600
    Motherboard
    MSI B550-A Pro
    Memory
    16 GB
    Graphics Card(s)
    Sapphire Radeon RX 6500XT (8 GB version)
    Monitor(s) Displays
    BenQ Mobuiz EX2710Q QHD, Iiyama ProLite X23377HDS
    Hard Drives
    MSI Spatium M461 4TB
  • Operating System
    Windows 11
    Computer type
    Laptop
    Manufacturer/Model
    Acer A114
    CPU
    Intel Celeron N4020
Hi, iko22, the cable is not at fault, but there is something that is still surprising me. the next thing to look at is number of lan,the router would support. Normally my service provider gives option of 5 ethernet jacks on the modem supplied by them. what puzzles me is, when the ethernet is connected to the router port,the light glows and i get private ip and i could get network connection. If i connect to the switch, i could not watch, except slow glowing of light and off of the light shown in the ehternet jack of switch connection. if i use ipconfig command, when connected to switch, media is shown as disconnected in ip. I could not come to the conclusion that the said switch port is defective, as ist works if another device is plugged on the same port.
i do not think that switch supports only two connections in five ports .
even no reply from tp lilnk .
 

My Computer

System One

  • OS
    windows 11pro version 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Inspiron 3910
    CPU
    i5 processor
    Memory
    8 gb
A quick description, my LAN consists of a Wireless Router, a Switch, 5 computers, 1 NAS drive and 2 Printers, all connected by Ethernet cable. The Router has an Uplink port which attaches to my Wireless DSL Modem and has 4 Ethernet ports, the Switch is connected to one port and provides 8 Ethernet ports. The Wireless part of the LAN allows computers to access the printers and NAS. Then everything can access the Internet through the Modem. The Modem can be used on one computer without connection to the LAN/Router.

There is another part called a Hub that could be used instead of the Switch but it doesn't have the data-collision prevention of the Switch.

Computers presently connected are Win11, Win10, Win7 and Linux Mint, printers are LaserJet and OfficeJet.
 

My Computers

System One System Two

  • OS
    Win11 Pro RTM
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 3400
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe
  • Operating System
    Windows 11 Pro RTM x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
    Monitor(s) Displays
    24" Dell
    Hard Drives
    512GB SSD NVMe, 2TB WDC HDD
    Browser
    Firefox, Edge
    Antivirus
    Windows Defender/Microsoft Security
Hi, Iko22 and berton, my problem has been fixed. I tried all sorts of connections and even checked the voltage etc. i swapped the ethernet wire jack in all ports and tried. Nothing worked. I even updated the drivers software, which again not fixed. Atlast, I went to official realtek.com and then select this link to download the drivers. It was a 2021 driver and after it was installed,I got the internet back to my old pc,which was not getting. Even tp link did not help me in anyway. the human chat support and hotline support were useless and vain.
Iko22, please tell me, how old drivers have worked when i connect to the router directly, and not when I connected to the network switch port lis still puzzling me. When i try to update drivers , i get the latest update drivers already installed message.
But, realtek has a new driver for the realtek pcle fe family controllers .
For each operation system, they are updating. I even tried realtek site. But got the page 500 error. the realtek real site is here. So any one who wants realtek drivers can download the network drivers from this page.
thanks iko, and all who has helped me in fixing.
 

My Computer

System One

  • OS
    windows 11pro version 23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Inspiron 3910
    CPU
    i5 processor
    Memory
    8 gb
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