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At home, I cannot access stackoverflow.com or meta.stackoverflow.com at all; my browser gets a The connection has timed out error.

All other Stack Exchange sites are fine. Accessing them from work is fine.

Both ping and tracert work just fine. I disabled both my router and PC firewalls, and flushed my DNS cache, but no dice.

My public facing IP is 75.119.247.95.

Is my IP being blocked on Stack Overflow's end, or should I contact my ISP?

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    I don’t think Stack Exchange blocks anyone at the IP level. The worst they’d do as far as IP blocking goes would be making the site read-only for a certain IP address. I’m not sure why you would be having connectivity trouble; you might need to contact your ISP, as you were considering.
    – icktoofay
    Commented Jul 7, 2015 at 2:24
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    I am assuming you're having problem on ur PC/Laptop... Before contacting your ISP, try this... visit StackOverflow.com using Smartphone or Tablet which are connected to same Wi-Fi... If it works then ur PC/Laptop has problem. Commented Jul 7, 2015 at 2:42
  • Can confirm it does not work on my phone either
    – Aaroninus
    Commented Jul 7, 2015 at 2:51
  • If its blocked, then how is this posted? Commented Jul 7, 2015 at 8:10
  • @UniKitty All other Stackexchange sites are fine
    – rene
    Commented Jul 7, 2015 at 8:47
  • Then you might want to use the "contact us" link below Commented Jul 7, 2015 at 8:48
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    @UniKitty No, not really given the answer of Tim
    – rene
    Commented Jul 7, 2015 at 8:49
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    @UniKitty That form might not be working properly for them, though it is the ideal way to contact us about it.
    – user50049
    Commented Jul 7, 2015 at 8:49
  • Does this answer your question? IP Banned on Stack Exchange
    – Luuklag
    Commented Jun 2, 2021 at 7:30
  • Closing this as a duplicate as the target has concrete actions one can take if they want to have their IP ban lifted.
    – Luuklag
    Commented Jun 2, 2021 at 7:30
  • Does this answer your question? Why is the IP ban administered and how is it carried out?
    – Rob
    Commented Jun 2, 2021 at 7:56

1 Answer 1

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We do not outright block IPs for spamming and bad behavior, we simply prevent accounts coming from them that aren't very established from posting. In order to get an outright block, something from your IP has to be hitting us really hard with abusive requests.

Turns out, that's what happened back on March 28, 2011 - when about 39,000 bogus requests per second started coming from it.

I've contacted our SRE team to look into dropping the rule because it is quite old, and there's strong evidence that a real person is now using it. Hang tight, might take a while.

Update

Done.

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    That did it. Now I can finally go back to flogging my male enhancement pills.
    – Aaroninus
    Commented Jul 7, 2015 at 23:21
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    Hey. Can you check for me too? I am also facing similar issue
    – Jdeep
    Commented May 6, 2021 at 9:39
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    @Jdeep I don't work here any longer - you could try contacting the team using the contact link in the footer of any site.
    – user50049
    Commented May 6, 2021 at 17:06

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