[SOLVED] LAN connection gives slow internet only on router and only my device affected

Dec 4, 2019
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Internet stopped working randomly while watching a video on my personal desktop. (weather not an issue)
I powercycle modem and routers. No fix
I connect desktop ethernet cable directly to the modem. Internet works perfectly.
I bought a new router. Internet works at half speed with 0.1 upload(only tested on personal desktop), around 8Mbs-25Mbs down
I bought a new modem and had it connected to my account via phone call to ISP.
I still have half or less down with 0.1 upload.
I now test on phone and fiance's desktop. Internet works fine.
Directly connected my desktop to new modem. Internet works fine.
Disabled Windows Defender Firewall while connected to router. Runs at half speed
System Restored my desktop, tested while connected to router. Still runs at half speed

My desktop cannot seem to get full speed when connected to the router.
All other devices including my fiance's wired desktop work fine.

New router: TP-Link Archer AX1500
New modem: Netgear CM500-100NAS

- Provide us with the exact specifications of your PC (if applicable) including:
- Make and model of motherboard
: ASRock z97 Extreme4
- Make and model of power supply: CORSAIR HX series HX650 650W ATX12V v2.2 / EPS12V
- Operating system and driver version: Windows 10 Home-64bit v1903
- You will also need to post your ISP and connection type* : Spectrum standard internet 50Mbs/5Mbs
- You will also need to post the exact number of devices connected to your router: At time of testing: 3-4 devices.
Max unique devices in the home: 10 devices (2 desktops(wired ethernet), 2 phones, 2 smart tvs, 1 roku stick, 3 game consoles)
- Post any and all error messages you are getting from your ISP or Windows itself: None from ISP or Windows
During speedtest I can get:
UPLOAD TEST ERROR
A socket error occurred during the upload test. A firewall could be blocking the connection or the server might be having some issues. Please try again later.

Alternatively, check out our free Speedtest for Desktop apps for more reliable testing



WIRED LAN CONNECTION ONLY

If you are operating on a wired connection as opposed to wireless these items will also need to be provided:

- Make and model of switches and how many ports are on each switch:
No switch
- How many PCs and laptops are connected to the network: 2 desktops via wired connection
- Whether or not a NAS (Network Attached Storage) or regular server is connected to the network: None
- Whether or not a Wifi router is connected to the network and/or switch: TP-Link Archer AX1500 is connected to the modem
- If you are using the internal LAN connection on your motherboard, a USB dongle, or external PCI card: Motherboard LAN connection
 
update the firmware of the router (TP link is in my opinion not a good choice to use)

install the latest lan driver for your lan chip Giga PHY Intel® I218V :
https://downloadcenter.intel.com/download/22283/Intel-Ethernet-Adapter-Complete-Driver-Pack?product=71305

Check the windows network type, it should be set to private instead of public

install the latest BIOS update via instant flash within BIOS using a USB flash drive and the unzipped BIOS file on it
https://www.asrock.com/mb/Intel/Z97 Extreme4/#BIOS
https://www.asrock.com/support/BIOSIG.asp?cat=BIOS8

uninstall any tuning tools like X fast LAN utility from ASRock

How strong is the router wifi link to the modem? Or is it wired via ethernet cable as well?
 
update the firmware of the router (TP link is in my opinion not a good choice to use)

install the latest lan driver for your lan chip Giga PHY Intel® I218V :
https://downloadcenter.intel.com/download/22283/Intel-Ethernet-Adapter-Complete-Driver-Pack?product=71305

Check the windows network type, it should be set to private instead of public

install the latest BIOS update via instant flash within BIOS using a USB flash drive and the unzipped BIOS file on it
https://www.asrock.com/mb/Intel/Z97 Extreme4/#BIOS
https://www.asrock.com/support/BIOSIG.asp?cat=BIOS8

uninstall any tuning tools like X fast LAN utility from ASRock

How strong is the router wifi link to the modem? Or is it wired via ethernet cable as well?
 
Dec 4, 2019
3
1
15
0
Thank you for taking the time to reply. I will test out these fixes when I get home. The modem and router are connected via ethernet cable.
 

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