facebook and netflix slow

clockrising

Prominent
Oct 27, 2017
4
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510
i have bought new inspiron dell with really decent spec and i got it yesterday
intel i7-8550U
8gb ram
radeon 530m

but somehow websites like facebook and netflix not loading properly and they are really slows (cant open the chat, notifications , cant see movies on netflix). it happens only on my computer, in my gf laptop every thing is just fine.

what can be the reason for that? i updated everything i can, the dell system scan is showing that everything is good
 

clockrising

Prominent
Oct 27, 2017
4
0
510


hdd is at 3%

i have checked and i have the latest update for windows. i cant see any process who is offending
 

clockrising

Prominent
Oct 27, 2017
4
0
510


when the Ethernet connected (just now i tried) everything work well!
but when the Ethernet is disconnected and i am connected to wifi, the sites are slow again,.

i tested the speed when my wifi is conected and it show 30 Mbps so it cant be the problem (in my gf`s computer every thing works well)

i guess i am using windows firewall and McAfee antivirus