Setting a "Deny" IP Access Address control could return "Invalid update" if the user IP creating the deny rule is not included on at least one allowed rangeIssue <!-- div.margin{ padding: 10px 40px 40px 30px; } table.tocTable{ border: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .6em; padding-bottom: .6em; padding-left: .9em; padding-right: .6em; } table.noteTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing:2; } table.internaltable { white-space:nowrap; text-align:left; border-width: 1px; border-collapse: collapse; font-size:14px; width: 85%; } table.internaltable th { border-width: 1px; padding: 5px; border-style: solid; border-color: rgb(245, 245, 245); background-color: rgb(245, 245, 245); } table.internaltable td { border-width: 1px; padding: 5px; border-style: solid; border-color: #E0E0E0; color: #000000; } .title { color: #D1232B; font-weight:normal; font-size:28px; } h1{ color: #D1232B; font-weight:normal; font-size:21px; margin-bottom:-5px } h2{ color: #646464; font-weight:bold; font-size:18px; } h3{ color: #000000; font-weight:BOLD; font-size:16px; text-decoration:underline; } h4{ color: #646464; font-weight:BOLD; font-size:15px; text-decoration:; } h5{ color: #000000; font-weight:BOLD; font-size:13px; text-decoration:; } h6{ color: #000000; font-weight:BOLD; font-size:14px; text-decoration:; } ul{ list-style: disc outside none; margin-left: 0; } li { padding-left: 1em; } --> Symptoms Setting up Deny IP access control is showing up the error Invalid updateAltering that range would lock your current IP address out! Cause The IP range you are trying to deny might come under your current Public IP range and that range would lock your current IP address out! e.g. If your current IP is 10.10.10.10, you should have an allow rule for 10.10.10.10 . Then you can create a deny rule for 0.0.0.0 to 255.255.255.255. Resolution Allow a range that contains your current Public IP first. To know what is your IP address, use this URL: https://www.whatismyip.com/ Then deny the range which you wish to be block. After allowing one public IP range, you could block from 0.0.0.0 to 255.255.255.255. e.g. If your current public IP is 10.10.10.10, you should have an allow rule for 10.10.10.10 . Then you can create a deny rule for 0.0.0.0 to 255.255.255.255.