Forum issue “Too many requests from this IP”

As title said sometimes when using the forums I get this “Slow down, too many requests from this IP address” and I don’t understand why it keeps happening. It could randomly happen after posting a message and I press F5, or some other way too…

the only fix is to close down my browser and most of the time this is a huge inconvenience as I have multiple browsers open, along with many tabs on my monitors, and only one or 2 of those tabs would be the forums. So then I have to close the whole browser and remember everything I had open lol.

I am not using a VPN