Usted buscó: invalid client or invalid client credentials (Español - Inglés)

para más información, vea “client credentials caching”.
for more information, see the section called “client credentials caching”.

these reasons could include a system failure, human errors, hardware failure, incorrect or invalid data, computer viruses, software application errors or natural disasters.
===recovery process===a tps may fail for many reasons such as system failure, human errors, hardware failure, incorrect or invalid data, computer viruses, software application errors or natural or man-made disasters.

el nombre realm es algo que define usted. le dice a los clientes a qué tipo de “ espacio de nombres de autenticación ” se están conectando; el cliente de subversion lo muestra durante las preguntas de autenticación, y lo usa como palabra clave (junto con el nombre y puerto del servidor) para cachear las credenciales en disco (vea “client credentials caching”.)
the realm is a name that you define. it tells clients which sort of “ authentication namespace ” they're connecting to; the subversion client displays it in the authentication prompt, and uses it as a key (along with the server's hostname and port) for caching credentials on disk (see the section called “client credentials caching”.)