I have 30 mb/s internet speed but sometimes if I disable and re-enable network adapter, it's only at 9 mb/s on speedtest.net and this happens several times. At first what comes in mind is the RJ 45 cable jack but it's working well on my old PC and don't have such an issue on it. I installed drivers from my Asus motherboard, tried setting in driver's configuration "speed and duplex" to 100 mb full duplex. also entered manually Mac and Ipv4 addresses but didn't solve the problem. So, the one that remains is the NIC on the motherboard?! Why it sometimes gives the full speed then if it's faulty? Is there a way to diagnose this?
edit: this PC is connected directly without router to the wired cable.
Windows 10 64 bit
Asus Prime a320m-f motherboard
Amd ryzen 5 2600 cpu
edit: this PC is connected directly without router to the wired cable.
Windows 10 64 bit
Asus Prime a320m-f motherboard
Amd ryzen 5 2600 cpu
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