Question Unusual internet speed problem - - - is it hardware related ?

[RatsMund]

Why is my internet speed limited to 17.5 down / 2 up?

Win10, i7-9700k, 16G ram, Nvidia 2070-supra 8G, Asus Rog Max XI Hero (Wi-Fi) ver 1

I get 100+ down / 20 up Starlink and am duplexed with DSL line 40 down / 5 up with switch selecting best speeds.
PC maxes out at 17/2 regardless. Ethernet line checked and wireless checked. IT troubleshooter bypassed ethernet/wireless card via Gen C USB port and got 17/2. He advised most likely motherboard problem and to get a new PC.

Network adapters up to date on version and shows working properly. Played with speed setting (now at 1 Gz) - no difference.

I'm suspicious this isn't a true motherboard issue. A couple of crazy options, 1) ethernet card is dead and the system defaulted to the built in motherboard capability? 2) Some sort of BIOS or software default setting that got mysteriously changed.

All options welcomed.

 

[cruisetung]

What do you mean duplexed? There is no such thing in networking.

You also can not combine two internet service's bandwidth.

You can only use something like dual wan load balance / failover router.

https://www.amazon.com/TP-Link-Integrated-Lightening-Protection-TL-R605/dp/B08QTXNWZ1

Starlink wired connection to WAN1
DSL wired connection to WAN2
and wired connection from your pc to any lan port of tplink router.
Your wireless adapter will be useless here.

 

[COLGeek]

How do other devices on the same network perform?

 

[RatsMund]

What do you mean duplexed? There is no such thing in networking.

You also can not combine two internet service's bandwidth.

You can only use something like dual wan load balance / failover router.

https://www.amazon.com/TP-Link-Integrated-Lightening-Protection-TL-R605/dp/B08QTXNWZ1

Starlink wired connection to WAN1
DSL wired connection to WAN2
and wired connection from your pc to any lan port of tplink router.
Your wireless adapter will be useless here.

By duplexed I intended to communicate that I have a switch that surveys the performance of both inputs (i.e., Starlink and DSL) and selects the highest performer for use. Sorry, I understand I used confusing language in the initial thread. I'm not technically sophisticated enough to understand the specific description but what you describe sounds like what I have. I understand that the WiFi connection has nothing to do with the load balance switch. I only offered the information on the WiFi performance to inform that it doesn't matter if the PC is getting ethernet input or WiFi input, the down/up speeds are the same in spite of the fact that both inputs are very much higher then the max speed being seen at the PC. Hope this clarifies.

 

[RatsMund]

How do other devices on the same network perform?

All other devices on the same network are performing great. Cellphone is hitting high speeds and so is my wife's PC on WiFi. As I said, I've had both the WiFi and ethernet connections checked by an IT professional (a really experienced one) and he validated both the ethernet cable used for the PC and the WiFi inputs were running about 100 down / 20 up. Actually, often better then that. So, I know this isn't a network problem. This is a hardware, software configuration, firmware catagories problem. I've just never heard of a "compromised" ethernet/wifi card. My experience has been go/no go, not decreased with performance set at some max rates. Mine happens to be 17.5 down/ 2 up regardless of ethernet or wifi connection.

 

[Ralston18]

On the computer in question run "ipconfig /all" without quotes via the Command Prompt.

Copy and paste the full results into your next post.

Also include make and model information for modem, router, or modem/router if combined.

 

[cruisetung]

Perform a Network Reset first.

View: https://www.youtube.com/watch?v=Spp6vkUom7c