Удостоверьтесь, что Вы имеете резервные копии и удостоверяетесь резервная работа. Затем освободите таблицы кэша базы данных (кэш, cache_block, cache_filter, и т.д.) (освободите их, не отбрасывайте их), и надо надеяться Вы вернулись в действии.
This is certainly possible and it sounds like you have installed the proper module. Its possible that you have not configured the module with the proper settings to DENY access first and then ALLOW your specific ranges of IPs.
It's also worth noting that depending on your firewall setup the firewall may mask the original IP address from the requester so you may not be able to actually setup IP restrictions on external IPs, rather only internal IPs which could get a bit hairy.