Steam IP ban? HELP!!

first

First thing you should do is to check your PC for malware and contact support afterwards (Steam support that is, not this one)

You should contact your internet provider support.

Did you delete your cache? You could use CCleaner for it or find it in your browser settings. A friend of mine had a problem with that a few month ago.

Try Google DNS's 4:4:4:4 / 8:8:8:8

Noob's corner - and the noob would be me
It probably won't do much good, but you can take a look here, if they blacklisted your IP chanches are it's blacklisted somewhere else too.
Additionally, if you have a dynamic IP you can just try to disconnect your router for about 15 seconds, you should get a new one.

very readable posting. Wouldn't read in this formatting. Really!

Hey guy again.thanks for the answers.its definetly a problem wit my ISP. I did some research and found out that others with the same provider have the same problem.its probably a temprary thing. I hope so. Thanks again for your fast responses.

I had this problem a few times.

Had to ask a friend via Skype to do the steam page for me. I reset my modem and worked fine.

Steam does not ban IPs. If they did, you would still be able to access your account but be very limited (after all you own different games) and you would defiantly be able to access their website. Problem is down to your pc I think. Mine was.

BANNU

END OF RINE.

Could you be running a firewall that's got a bit overzealous?

Do you have the internet access in the bottom left corner? (if you have vista) If so then check for viruses