intel connectivity network service causes slow broadband upload speed

[Clwyd]

I am running Windows 11 Pro (16GB RAM, intel 13th Gen i7 Chip) on a modern laptop

If the intel connectivity network service is enabled, then my broadband upload speed drops from 935 Mbps (on a 1GB fibre connection) to less than 1 Mbps!

Connection is via a direct ethernet connection to the router (not Wifi).

Speed is restored if I disable the service.

Download speed in both cases is stable at 935 Mbps

[Senkuchan · Accepted solution]

What is the specific model of your ethernet, as it is different from the processor. You can refer to this link for guidance: https://www.intel.com/content/www/us/en/support/articles/000005584/ethernet-products/gigabit-ethernet-controllers-up-to-2-5gbe.html

It would also help if you could send us the ssu logs for more information.

Additionally, the Intel® Connectivity Performance Suite (ICPS) is a software solution that enhances PC networking performance by customizing the network experience based on each user's individual situation.