I figured I would post this here as well, there is apparently a daily limit according to OpenRouter's website. So if you're having connection issues and using a free AI then you may have hit the limit. Sadly there doesn't seem to be any indication on their website if you have reached that limit but I was just doing testing while creating a world and I am pretty sure I would be far past that if they didn't stop me.
Free limit: If you are using a free model variant (with an ID ending in :free), then you will be limited to 20 requests per minute and 200 requests per day.