INTERNET SLOW OR DISCONNECTS AFTER INSTALLING BITDEFENDER INTERNET SECURITY OR TOTAL SECURITY

For this go to Settings menu in bitdefender -> Select Privacy Control Settings -> and disable below 3 options

1 Show bitdefender toolbar
2 Search advisor
3 Scan SSL

After this go to home. and select manage adapters in firewall menu and set them as follows
Network type ->   Home/Office
Stealth Mode  ->  Off
Generic          - >  No

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