Title: Problem
Last modified: August 31, 2016

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# Problem

 *  Resolved [Rik0399](https://wordpress.org/support/users/rik0399/)
 * (@rik0399)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/problem-155/)
 * Hi,
 * First, thank you for WF, such a great plugin, wouldn’t be without it.
 * With regard : (Options)
 * ‘Immediately block the IP of users who try to sign in as these usernames’
 * Even though I have added a screen name, IPs are not being blocked and are still
   able to try an login with usernames added?
 * Regards,
 * [https://wordpress.org/plugins/wordfence/](https://wordpress.org/plugins/wordfence/)

Viewing 5 replies - 1 through 5 (of 5 total)

 *  [WFBrian](https://wordpress.org/support/users/wfbrian/)
 * (@wfbrian)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/problem-155/#post-7069073)
 * Hi,
 * Are you having issues with saving any other settings? It could be possible that
   there are permissions issues on your database. Is this a new install of Wordfence?
 * Thanks,
    Brian
 *  Thread Starter [Rik0399](https://wordpress.org/support/users/rik0399/)
 * (@rik0399)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/problem-155/#post-7069082)
 * Hi Brian,
 * No, WP & DB started around 9 months ago
 * Regards,
 *  Plugin Author [WFMattR](https://wordpress.org/support/users/wfmattr/)
 * (@wfmattr)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/problem-155/#post-7069114)
 * [@rik0399](https://wordpress.org/support/users/rik0399/):
 * In that case, you can try the option “Disable config caching” — on some hosts,
   this may cause trouble if the cache can’t be written/read consistently.
 * Otherwise, any issues with this option are usually caused by conflicts with other
   plugins, most often captcha plugins. If another plugin changes WordPress’s internal
   error code for why a user’s login failed, Wordfence can’t see the original reason.
 * -Matt R
 *  Thread Starter [Rik0399](https://wordpress.org/support/users/rik0399/)
 * (@rik0399)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/problem-155/#post-7069115)
 * Hi Matt,
 * Thanks for that,
 * I’ll give that a go and report back if I may.
 * At the moment, I am being ‘bombed’ 24/7 by IPs searching for usernames and just
   can’t stop them?
 * They are employing Dynamic IP address from all over the globe and worry that 
   if I were to block them, I may inadvertently block good users/visitors?
 * Regards,
 *  Plugin Author [WFMattR](https://wordpress.org/support/users/wfmattr/)
 * (@wfmattr)
 * [10 years, 2 months ago](https://wordpress.org/support/topic/problem-155/#post-7069120)
 * Hi,
 * Yeah, that’s pretty common — most of the time, the hack attempts aren’t coming
   from IPs that are likely to be real users. A lot of times, they’re hacked sites
   at other hosting companies.
 * If any of the IPs are similar to each other, you can click the link “Block this
   network” when you see them on the Live Traffic page, or click the Whois Lookup
   link on the menu and enter one of the bad IPs.
 * This will give information about who owns the IP range, and a couple links to
   block a range of IP addresses that are run by the same company. If you can tell
   that it’s a hosting company, it’s generally safe to block the given range. (Sometimes
   there are a couple ranges, one with more and one with fewer IPs.)
 * -Matt R

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Problem’ is closed to new replies.

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 * 5 replies
 * 3 participants
 * Last reply from: [WFMattR](https://wordpress.org/support/users/wfmattr/)
 * Last activity: [10 years, 2 months ago](https://wordpress.org/support/topic/problem-155/#post-7069120)
 * Status: resolved