Cox Email Signing In

After opening the  MyEmail.cox.net site, I enter my ID and password.  For the past 3-4 weeks I have been receiving the following Cox message:  THERE WAS AN UNEXPECTED INTERNAL ERROR-PLEASE TRY AGAIN.  Although the error message is sporadic, at times I had to wait several hours before I was able to sign in.  If I am merely checking messages, I normally can wait.  However, if I am waiting for a security code to arrive-the code expires before I can sign in.   Unfortunately, my 4 live chats and a telephone conversation with a technician did not resolve this ongoing issue.