Hi all, first time posting for tech support on lemmy!
I've recently switched ISPs to now have a gigabit connection at my home, but we've been experiencing some weird issues with it. When i run a speedtest, I get my full gigabit (or close enough) speeds and most of the time it works perfectly. But ever so often, it just completly drops all packets. When downloading a file for example it can randomly drop the speed to 0 b/sec and you have to restart the download in order to get it working again. Same with website loading, when it happens when loading a website, just half of the website gets loaded and I am missing images/styling/etc.
Now I run my own EdgeRouter X behind my ISP provided router. I have a nagging feeling this could be causing my issues, but with my previous ISP I was running the same setup and it worked flawlessly (albeit with a different ISP provided router).
Have any of you experienced something like this before?
Edit: thanks for all the quick responses everyone! I will look into your suggestions and update the post if/when I've found my solution.
Edit 2: Fixed the problem. As always, when in doubt, it's the DNS. My ISP router did not come with any DNS settings preset. I set it to the same DNS as my EdgeRouter and my problems went away. I hope this helps some of you facing the same issue. Thanks for your responses!
if two devices in the same LAN have the same IP address, the sending host or switch gets confused and tries to sent packets to the wrong receiving device. this can cause long periods where devices seem to "drop off" the network, or only get some of the packets they are expecting.
if you have no issues with device-to- device connectivity (e.g. large, long lived files transfers between your PCs are fine), then its likely not the problem.