The short version first:
My daughter works in a small newly established cell under a Central (federal) government program. She's provided with a new desktop computer and fiber internet supplied by local companies. These were installed in her absence and, while she could access the internet via Wi-Fi from her phone and laptop, the desktop couldn't connect to the modem with the supplied UTP patch cable.
I gave her a Wi-Fi dongle to try with the desktop and it worked but still refused to connect via LAN cable. When she called the ISP, they told her that her computer needed a "network driver" and that they couldn't install it because her computer lacked an optical drive. I checked the computer with TeamViewer and all drivers, including that for the network adapter, are installed.
She brought the computer home and it had no trouble connecting to our home network and internet. All network settings are at default.
The supplied patch cable was a straight-through one. So I gave her a crossover cable which worked. Then she tried the straight-through cable and it also works now.
All of this happened over a period of several days, during which my daughter unplugged and re-plugged the cable, restarted the modem and the computer several times. What could be the cause of the initial problem?
- A new Windows 10 desktop failed to connect to a fiber modem with a straight-through LAN cable.
- It connected immediately with a crossover cable.
- After that, it also worked with the straight-through cable.
My daughter works in a small newly established cell under a Central (federal) government program. She's provided with a new desktop computer and fiber internet supplied by local companies. These were installed in her absence and, while she could access the internet via Wi-Fi from her phone and laptop, the desktop couldn't connect to the modem with the supplied UTP patch cable.
I gave her a Wi-Fi dongle to try with the desktop and it worked but still refused to connect via LAN cable. When she called the ISP, they told her that her computer needed a "network driver" and that they couldn't install it because her computer lacked an optical drive. I checked the computer with TeamViewer and all drivers, including that for the network adapter, are installed.
She brought the computer home and it had no trouble connecting to our home network and internet. All network settings are at default.
The supplied patch cable was a straight-through one. So I gave her a crossover cable which worked. Then she tried the straight-through cable and it also works now.
All of this happened over a period of several days, during which my daughter unplugged and re-plugged the cable, restarted the modem and the computer several times. What could be the cause of the initial problem?
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