Network slow/halted with multiple PCs?

[WiiMAN]

Hi. This could be an immense coincidence, but lately the internet has been super slow at home, absent half the time. But I noticed the strangest thing. I have 2 PCs connected to the same router, and strangely when I disconnect one of them, the other one starts connecting normally. But as soon as they're both connected, internet speeds go super down. What could be happening?

 

Both PC in Win10, one in Insider Previews

ASUS RT-N56U Router

All PCs connected to on-board LAN

 

PC 1:

ASRock 970 Extreme4

AMD FX-6300 Processor

Samsung 850 Evo SSD

GeForce GTX 950

 

PC 2:

ASRock 880G Motherboard

AMD Phenom II X4 925 Processor

Kingston 250 SSDNow

GeForce GTX 260

[WiiMAN]

10 hours ago, llldino said:

Can you check the local IP addresses of both computers? It's possible that they share the same local address which would be a problem.

According to the router, they're not the same. Right now one ends in .12 and the other one in .3

[WiiMAN]

17 hours ago, llldino said:

Hmm. Perhaps try resetting the router back to factory settings if that's at all possible. It could just be a coincidence that by unplugging one, the other computer works, but from my experience, it probably has something to do with both being plugged in.

 

You could also try flushing the DHCP cache on both clients and the router. For a computer this can be accomplished by disconnecting from the network and then "forgetting" it by deleting the saved network settings for the network you're having an issue with. For the router, typically there is some option in the router configuration page such as clear DHCP clients, list or something to that effect. Failing that, you can try a factory reset and see if that fixes your problem.

 

It could also be anything upstream from the router, such as another router is connected to, or the modem, or perhaps your ISP. I'm assuming when you're getting these issues no one else is straining the bandwidth on your network? Netflix is really good at doing that q:

Network usage has been little-ish lately, mostly YouTube. I'll try your recommendation when I get back home and report any results. Thanks

[WiiMAN]

On ‎5‎/‎14‎/‎2016 at 4:20 AM, llldino said:

Hmm. Perhaps try resetting the router back to factory settings if that's at all possible. It could just be a coincidence that by unplugging one, the other computer works, but from my experience, it probably has something to do with both being plugged in.

 

You could also try flushing the DHCP cache on both clients and the router. For a computer this can be accomplished by disconnecting from the network and then "forgetting" it by deleting the saved network settings for the network you're having an issue with. For the router, typically there is some option in the router configuration page such as clear DHCP clients, list or something to that effect. Failing that, you can try a factory reset and see if that fixes your problem.

 

It could also be anything upstream from the router, such as another router is connected to, or the modem, or perhaps your ISP. I'm assuming when you're getting these issues no one else is straining the bandwidth on your network? Netflix is really good at doing that q:

Well, I ended up removing the Windows 10 Beta from the other PC, now they're both running regular Windows 10, and that might've fixed it. So I suppose the beta was the issue. Strange tough, since a different build was released during the issues and it stayed the same. But thank you for your time, greatly appreciated!