Steam can't connect?

Ok this is what I did and happened before I cant connect to steam.

- Made 4 accounts with same email address.
-Click on a scam link and scanned with malware bytes. And found 2 Trojans and deleted them
-Got new Modem with new Wifi password
But after sometimes I got the new modem i cant access my account. It always say can't connect to steam.
This is what I did
-Made new account with same email address but suddenly when signing in my new account it says can't connect also.
But I changed my password in Ipad safari.
I tried signing in but it always say incorrect login. Even thou i typed the right password and username. The Recaptcha is correct but won't let me get signed in.
What is causing this?

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