NEW YORK — The second round of loan applications for the government’s small business relief program has been slowed by computer issues at the Small Business Administration.

Lenders complained Monday that they couldn’t get their applications into the SBA system known as ETran that processes and approves loans. The agency said it notified lenders Sunday that it was limiting the number of applications any lender could submit at once.

The SBA began accepting applications at 10:30 a.m. Eastern time for $310 billion in funding. The program’s initial $349 billion was exhausted in less than two weeks after more than 1.7 million loans were approved. That first round was also slowed by computer issues at the SBA,

Banks had thousands of applications ready to go Monday. Richard Hunt, president of the trade group Consumer Bankers Association, said the SBA’s change was too last-minute — bankers had already sent large batches of applications to the agency, not knowing that a new procedure was being planned.

“We learned at the 11th hour that SBA had changed its process. They could have told us well ahead of time,” Hunt said. He said the agency’s computers weren’t able to accept even the reduced number of applications per hour that it had planned.