MediaWiki:Sorbsreason
From Halopedia, the Halo wiki
Your IP address is listed in one or more public spam blocklists and has been prevented from editing to protect the wiki. One common cause for this is the use of a VPN server.
If you believe this to be an error, you can check your IP address here to see the offending list(s), then go to the blocklist's website to request removal.