Lock request timeout Exceeded

Question

I have a dotnet exe app in a server which runs in sql server. during the factory production time my application were unable to connect to db for 1 to 2 minutes and then it gains connectivity at this unresponsive time when i accessed sql server management studio, i got the below error:

Answer 1

Taken from the answer over here. This usually happens when there are too many open transactions that are blocking read access to your database server. You can try restart your server which will usually solve the issue.