My network suddenly stops working for download tests, so I can't get data at all.
My network suddenly stops working for download tests, so I can't get data at all.
Run and post the results of running arp -a. Check where you see ipconfig /all. Did you assign a static IP (192.168.1.2) to your PC? If so, why did you do that? If no, look at your Ethernet network adapter settings and make sure it is set to "Obtain an IP address automatically".
I tried setting up DNS servers in a hope that would help if I assigned them. Back then, I did this too just so I could set up some port forwarding. I went back to my old way and ran an arp -a command. Here is what it showed: https://ibb.co/N7WxKdx NOTE: Even after changing the IP back to automatic, the problem stayed exactly as before.
DHCP gives me a range from 192.168.1.2 to 192.168.1.254. I can check my settings here or trace the path by using ARP, Tracert, and other tools at https://ibb.co/BnYvkhm.
Does your ISP offer IPv6? If they don't, turn it off. Are you sure only one network card is active on your PC? Is there no wireless adapter, or if there is a wireless one, is it turned off? Using the command "arp -a" shows four other devices that get their IP addresses automatically (DHCP). Does this match what you expect?
I disabled IPv6, no differences. There is a second network adapter that I use for USB Tethering from my phone but it is disabled when I am using Ethernet. Other devices are 2 or 3 phones, 2 laptops and a smart thermostat that would be all, nothing new, it is like that for months. I have captured my network with Wireshark during a download speed test. I do not know how to interpret this data and it seems a little overwhelming to me. Would anyone care to take a look? This is the link to the file where I uploaded it: https://easyupload.io/6yc4a2 Thanks a lot for helping me out! EDIT: From what I have figured out reading online, it seems like I am getting around 4.7% packet loss which seems very bad. Those are bad TCP re-transmissions etc. NOTE: For the third night in a row I have noted that during night time, somewhere after midnight the network speed return to normal without any droppings. To me this smells like ISP problem after all...however I am still boggled about the fact while during daytime my PC is acting up but on other devices it is working fine. Cable is not the problem, I tested that.