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Frequently/erratically partially drops internet connection
For about the last 45-60 days, when Norton is running, my laptop randomly/erratically and frequently seems to partially drop my wireless internet connection - and it seems related to Norton.
Sometimes every 2-3 minutes, sometimes every 10-15 minutes, my laptop loses its internet connection, but only on specific ports/apps. Browsers, SCP, telnet, all seem to drop. Skype drops too. But weirdly, audio/video calls on Zoom *do not drop*, and I can continue IM-ing on Slack, even though Slack shows me that it's offline (I suspect that Slack is running on 2 ports - one on port 80 that monitors the network and one other port that continues to work). Emails on Thunderbird don't work (no send/receive).
The only way to get back the connection is to disable and re-enable WiFi - every 2-3 minutes.
When I uninstalled Norton, the problem vanished - completely. I went 2 hours with no internet interruption. I then re-installed Norton, and viola! Like clockwork, the problem reappeared instantly. I uninstalled Norton again, and sure enough, the problem vanished.
When I uninstalled Norton, Windows Defender automatically kicked in, but my internet connection remained stable. I've had (and updated) Norton installed on this specific laptop since the beginning - 6 months, but the problem has been pronounced for about 2 months. It's not that the problem happens upon/after hibernation - it happens right in the middle of a working session. I've run full system scans with Norton and other AV tools, but none of them have shown any problems. I've cleaned the system with CCleaner too, but that hasn't helped either.
Can anyone help, or shed some light on why only some parts of the internet connection would drop when Norton is installed?
These are the laptop specs:
Windows 10 Pro.
Intel Core i7 2.30GHz.
64 bit OS, x64 based processor.
Microsoft Windows Version 10.0.15063 (latest updates applied - Windows 10 Creator Update Version 1703)
Norton Security Standard 22.214.171.124 (latest version).