Client sometimes doesn't connect to new world server

[teccheck]

Client log

3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 
3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 
3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 
3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 
3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 
3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 
3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 
3 :SysAddressToNetID can't find sysAddress! 127.0.0.1:20000 

This is probably a side effect of the tcp mod