Getting this message when trying to login?:

Sorry,Connection Problems Please try again-200.

It clearly means that IRCTC has received your request but currently unable to process it.

Then it can be due to following reasons:

• IRCTC server/service closed deliberately or by accident or during unscheduled maintenance
• Server crash
• Network lines down within IRCTC

These are not the causes

• Your computer/browser or internet problems
• Railway server which actually handles booking/cancellation down is less likely

What to do?

Keep retrying...