我正在使用源代码树，每次尝试执行推送时都会出现以下错误：
git -c diff.mnemonicprefix=false -c core.quotepath=false push -v --tags -- set-upstream origin master:master
Pushing to ssh://git@sandbox.dev:2222/dashboard.git
Access denied
Access denied
Access denied
FATAL ERROR: Server sent disconnect message
type 2 (protocol error):
"Too many authentication failures"
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
Completed with errors, see above.
有人可以告诉我如何解决这个问题以及它是如何造成的？