I had a client whose setup was giving them 500mb download speeds but only 1-4mb for uploads. They're in an office with four other PCs that are all getting 500mb up and down just fine. I tried reinstalling the network driver, used the latest version from Dell, swapped out the network cable, and even moved the PC to a different office with a new port and cable. I also started the PC in safe mode, but nothing worked. Eventually, using a USB-C to Ethernet adapter solved the issue and restored the speed. I'm curious if anyone has insights on what might have caused this upload speed problem. Is it really typical for a network port to fail in such a one-sided way?
4 Answers
It could be a faulty network card, or maybe some settings like jumbo frames or duplex modes are misconfigured—but that's a long shot. If it's worth it, RMA it! Otherwise, just keep using that USB-C adapter or look into getting a replacement NIC. Not much else you can do if all else fails.
It sounds like you might be dealing with a malfunctioning port. If you can, try to RMA the equipment. Otherwise, sticking with the USB-C to Ethernet adapter is a solid workaround. Just to be cautious, a fresh OS install might also be worth considering before sending it back, as there could be something off with Windows that the driver reinstall didn't catch.
For what it’s worth, being over three years old could definitely lead to unexpected issues like that. Sometimes hardware really does just start acting weird out of the blue.
You might want to consider the transceivers for the data pairs. If one of those pairs has cramped up on a gigabit Ethernet setup, it can drop speeds down to 10 or 100Mbps. Definitely check if it’s just a single transceiver failing or something in the wall.
It sounds more like a bad cable between the computer and the wall. Make sure to swap out the cable first before digging deeper into the network setup. If that doesn't do the trick, it might be worth investigating the wall connection or the patch panel.
Yeah, that's a good point! I didn’t think about the OS aspect, especially if the port was acting up randomly. It's like the network card could be causing these hiccups.