bouncer says no error

This may be due to massive attacks on many servers worldwide – aimed at WP sites:

https://www.ads-software.com/support/topic/brute-force-attacks-and-wordpress?replies=2

Thanks for the info..
How would I go about changing my login name. Is that even possible once its set?
Also is there any way I could get the social network plugin to work again or do I need to uninstall and re-install again?