Visitor logs show OAI-SearchBot/1.3 receiving inconsistent results when crawling my robots.txt
As the title says, My visitor logs show OAI-SearchBot/1.3 recieving inconsistent results when crawling my robots.txt file. Most of the time, it receives a 200 status, But sometimes it receives a 401, and other times it receives a 403.
I've whitelisted all of the IP addresses (in All-in-one Security) that OAI-Search is crawling from, but it made no difference.
I asked my hosting service for help. They restarted the server level firewall. But it made no difference.
Anyone else seeing this in their visitor logs? Any idea what causes it or what we can do about it?