CD keys banned

hello, i only use kolbot / d2bs as a maphack and am always banned. When I start diablo2 it says: “Connection to Battlenet lost - please reconnect”. The ban is usually lifted after 1 to 4 days and I can log into the bnet again. Changing the IP address in the router does not help. I am not sure which version of the bot I am using. Could it be because of the wrong version that I keep getting banned?
When I click on “About” in the bot manager, I see version: 20.6.7.100 and: Software is up to date. ---- update: Now 3 cd keys were usable again and I played without bot or other programs and still got a cd key ban, what could be the reason?

Are you using a vpn or proxy? Only thing I can think that would keep getting you flagged.