Try this it is from the official forum :
III: Server Inspection Error
- Confirm in the News section if the Server is Under Inspection or not.
- Permit sro_client.exe, silkroad.exe, gameguard.des to access the internet via your Firewall.
*IF YOU HAVE RE-INSTALLED THE GAME YOU WILL REQUIRE TO REFRESH YOUR PROGRAM ALLOW LIST.
*UNINSTALLING THE GAME DOES NOT FIX THIS ERROR
- Check your host file by doing the following:
Open your Hosts file with NOTEPAD at => C:\Windows\system32\drivers\etc and
Confirm/Add The following lines:
# Copyright c 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments such as these may be inserted on individual
# lines or following the machine name denoted by a # symbol.
#
# For example
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
127.0.0.1 localhost
222.111.150.111 gwgt1.joymax.com