Hopefully someone can help me, because this is baffling to me and all of my tech savy friends. I used to have a modem/wifi router all in one. The connection would cut in and out when connected via an ethernet cable, but was OK if the computer was connected to the internet via wifi. Just to be clear: when I connected via the ethernet cable, I have the wifi option turned off for the computer. A friend came over and tried to diagnose the issue and thought the issue was with the modem/router and not the desktop. The strength wasn't the fasted- so when a good deal presented itself for a seperate cable modem and wireless router, I jumped on the opportunity and bought both.
I set up the cable modem and the internet connection was great when connected through an ethernet cable. However, once I set up the wireless router, the previous issue persisted. The internet connection cuts in and out whether I have the wifi on or off. However, if I connect the computer throught the wifi, the connection is strong. The new wifi router is of much better quality, so overall I am happy.
However, I would much prefer my desktop be connected through an ethernet cable, because the connection is much more reliable.
Yes, all my firmware for both the router and desktop is up to date and my anti-virus/firewall isn't the issue. I just can't figure out why the ethernet cable works fine when plugged directly to the cable modem and not when connected via the wifi router.
Kindly try performing the steps in this document to troubleshoot wired home network issues in Windows 10. Test the network connection after performing each step. If the problem is not fixed, continue to the next step.
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