this post was submitted on 08 Aug 2023
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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!

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[–] [email protected] 1 points 1 year ago (1 children)

I'm sorry, what do you mean with conflicting IP addresses? I've made sure to run the ISP router -> EdgeRouter connection on a different Subnet, and the EdgeRouter is the only device connected to the ISP router.

I've run a ping test for a while from the EdgeRouter, but I can't seem to be able to replicate my issues during a ping test unfortunatly. It's really quite puzzeling me

[–] [email protected] 1 points 1 year ago

Conflicting IPs on your LAN can cause things to stop working but fix itself fast enough you don’t catch what is going on. I mention it because it just happened to me. I had a static IP set but didn’t realize it was within my DHCP range.

However I was able to eventually catch it with a long running ping test.