Internet being throttled somehow?

[Putty23]

So when i did a fresh windows install after buying a new PC i realized it was throttling my supposed 1Gbs fiber internet speeds. FYI pc specs are intel i7 8700k and MOBO Asus rog strix z-390i gaming wifi. I updated all the drivers, checked the bios, and found nothing. Same with any apps possibly throttling it. Contacted ATT and nada. Tried changing the router settings and NAT to everything full open and Max of 999MBps and still no luck. Then i once again did a fresh install of windows deleted everything and boom it somehow worked? Now i built a ryzen build for my girlfriend and same issue. Still has a asus rog strix but b-550f chipset.

[ImAlsoRan]

3 minutes ago, Putty23 said:

-snip-

What are your speeds? What are you using to gauge those speeds? Are you on WiFi, or Ethernet? How many devices are on your network?

[Somerandomtechyboi]

Try using a vpn, maybe thatll work

[Putty23]

17 minutes ago, ImAlsoRan said:

What are your speeds? What are you using to gauge those speeds? Are you on WiFi, or Ethernet? How many devices are on your network?

I was using speedtest.net and switching between wireless and ethernet CAT6. Only one on the network was me and i tested it through my phone as well. On my phone it got full essentially 999MBps average on the pc was around 20 to 30. I swapped testing services a few times to check through AT&T but technically that also runs off speedtest.net so i really didn't switch anything.  As far as what actually fixed it with my computer id assume somehow on the second fresh windows install? 

[ImAlsoRan]

2 minutes ago, Putty23 said:

-snip-

Do you have ROG GameFist or any other LAN priority software?

[Somerandomtechyboi]

1 minute ago, NZgamer said:

Using a VPN would slow down the speed

Well idk what else to reccomend, who knows maybe a vpn might work ¯\_ (ツ) _/¯ 

[Putty23]

16 minutes ago, Putty23 said:

I was using speedtest.net and switching between wireless and ethernet CAT6. Only one on the network was me and i tested it through my phone as well. On my phone it got full essentially 999MBps average on the pc was around 20 to 30. I swapped testing services a few times to check through AT&T but technically that also runs off speedtest.net so i really didn't switch anything.  As far as what actually fixed it with my computer id assume somehow on the second fresh windows install? 

Also Mbps my caps was messed up

[Putty23]

12 minutes ago, ImAlsoRan said:

Do you have ROG GameFist or any other LAN priority software?

Yeah, it was installed both times. As far as anything else not that i know of

[ImAlsoRan]

3 minutes ago, Putty23 said:

Yeah, it was installed both times. As far as anything else not that i know of

GameFirst messes with your internet connection to "make your gaming better". What it actually does is make your internet speeds terrible by throttling certain applications. Uninstall it.

[Putty23]

2 minutes ago, ImAlsoRan said:

GameFirst messes with your internet connection to "make your gaming better". What it actually does is make your internet speeds terrible by throttling certain applications. Uninstall it.

Alright I'll give it a shot

[Putty23]

On 6/29/2021 at 8:36 AM, ImAlsoRan said:

GameFirst messes with your internet connection to "make your gaming better". What it actually does is make your internet speeds terrible by throttling certain applications. Uninstall it.

So turns out on her PC it isn't even installed. Im currently not there to trouble shoot anything because im deployed so i wish i could look deeper into it.