Does turning off your network connection back on make your internet slower?

F5F Stay Refreshed Power Users Networks Does turning off your network connection back on make your internet slower?

Does turning off your network connection back on make your internet slower?

Does turning off your network connection back on make your internet slower?

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JacobLouis30
Posting Freak

856

06-30-2026, 11:40 PM

#1

I have internet that looks like 30 mb/s at first, but sometimes when I turn off and on again my speed drops to just 9 mb/s. This happens more than a few times. At the time I thought about the RJ45 cable maybe it broke? But it works fine on my old computer so that isn't the issue. I installed drivers for my Asus motherboard, tried changing "speed and duplex" in settings to full speed at 100 mb/s. I also typed in the Mac and IPv4 addresses by hand but that didn't fix it either. Now what is left? Is the network card on the motherboard actually bad? Why would it sometimes give full speed while other times it gives slow speeds even if it's broken? How can I find out for sure? Also, this PC does not connect through a router; it uses the cable directly from my computer to the modem. The system is Windows 10 running on 64-bit. It runs on an Asus Prime A320M-F motherboard with an AMD Ryzen 5 2600 processor

J

JacobLouis30

06-30-2026, 11:40 PM #1

I have internet that looks like 30 mb/s at first, but sometimes when I turn off and on again my speed drops to just 9 mb/s. This happens more than a few times. At the time I thought about the RJ45 cable maybe it broke? But it works fine on my old computer so that isn't the issue. I installed drivers for my Asus motherboard, tried changing "speed and duplex" in settings to full speed at 100 mb/s. I also typed in the Mac and IPv4 addresses by hand but that didn't fix it either. Now what is left? Is the network card on the motherboard actually bad? Why would it sometimes give full speed while other times it gives slow speeds even if it's broken? How can I find out for sure? Also, this PC does not connect through a router; it uses the cable directly from my computer to the modem. The system is Windows 10 running on 64-bit. It runs on an Asus Prime A320M-F motherboard with an AMD Ryzen 5 2600 processor

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FusionFria
Junior Member

39

07-01-2026, 12:11 AM

#2

Don't change your duplex settings; go back to normal. You likely have data moving in or out right now. Restarting could start a speed test before those transfers begin, causing a hiccup.

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FusionFria

07-01-2026, 12:11 AM #2

Don't change your duplex settings; go back to normal. You likely have data moving in or out right now. Restarting could start a speed test before those transfers begin, causing a hiccup.

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ketman34
Posting Freak

834

07-01-2026, 06:46 PM

#3

I don't need to download or upload files. I turned off Windows Updates too, but I still couldn't get it working even after installing Windows 7. It's the same issue.

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ketman34

07-01-2026, 06:46 PM #3

I don't need to download or upload files. I turned off Windows Updates too, but I still couldn't get it working even after installing Windows 7. It's the same issue.

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MarkizCraft
Member

58

07-02-2026, 02:02 AM

#4

You could try plugging the modem straight into your PC so you are sure no other client is using it. If it's an all-in-one box, just make sure nothing else is connected through a cable or Wi-Fi. Then, turn on your network monitor and test again. If you have another computer handy, use that one to try as well.

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MarkizCraft

07-02-2026, 02:02 AM #4

You could try plugging the modem straight into your PC so you are sure no other client is using it. If it's an all-in-one box, just make sure nothing else is connected through a cable or Wi-Fi. Then, turn on your network monitor and test again. If you have another computer handy, use that one to try as well.