Network on home computer gets lost, adapter should be disabled/enabled to restore network access

I am using Windows 10 desktop and some 2 weeks ago started to appear the following problem: network connection to the cable network gets lost randomly. It usually happens (or is detected) when I am downloading some file or viewing youtube or other online videos. Connection can be restored by resetting (disabling/enabling) local area connection network adapter. The last days it appear every 3-5 minutes, that is too frequently.

So - what should I do? What diagnostic tools are available for detecting the problem. I have used Ethereal but it is beyond imagination that I should capture all my traffic and try to detect some abnormal packs. Should I talk to my inteet provider. What can it do?

I have McAfee Inteet Security Suite and I guess that should exclude any problems with security.

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