I'm having the exactly same issue i find a solution . this issue hapen in sql server login fail. To verify that
please check era server logfile in C:\ProgramData\ESET\RemoteAdministrator\Server\EraServerApplicationData\Logs\trace.log
open check some thing like this Error: Service [Thread 2228]: [Microsoft][ODBC SQL Server Driver] Login failed for user then go to C:\ProgramData\ESET\RemoteAdministrator\Server\EraServerApplicationData\Configuration\startupconfiguration.ini open in text editor change your password Pwd={YourSqlEraPassword} then restart Eset Remote Administrator Server service then try to log
