MK, well i haven't found anything to fix that problem.
But here's a list to look at to just make sure its not the bot itself.
1.) have you downloaded the latest java?
2.) Delete the cache you have on there Rsbot (files)/ Temp files. clear and re download. (should be something close to that. ive never personally done it though.)
3.) What version are you using? 4023 or 4024. some people are having connection issues and believe it has to do with the bot updating and no "fresh" client for download.