Florida schools returned to computerized FCAT testing on Wednesday after receiving word from the state that the systems were again running properly.
Twenty-six districts reported problems with student access to the online exams on Tuesday, prompting the Florida Department of Education to recommend a delay in testing for affected schools.
Education commissioner Pam Stewart blamed testing company Pearson for the troubles.
Just after 7 a.m. Wednesday, Stewart advised school superintendents that Pearson had fixed its servers and that no further disruptions should occur.
"Pearson has assured the department that this strategy will resolve the issues related to yesterday's interruptions and the system will resume normal functionality," Stewart wrote. "Given this, schools may resume testing this morning."
Individual schools will determine when to reschedule the students who were affected on Tuesday.