TinyTds::Error: Adaptive Server connection failed - ruby

Question

This is an odd one. I have some ruby code on my machine which uses the tiny_tds version:
0.6.0.rc1
and everything works fine. When a co-worker attempt to run the same code he gets the following error:
TinyTds::Error: Adaptive Server connection failed
We are connecting without providing username or password as it's not needed on my machine. Any ideas? could this be a rights thing on the sql database?
Thanks in advance
It should be noted on the machine with issues we have SQL 2008 R2 and SQL Express installed. We can connect to SQL express but not SQL 2008 R2
Here's the code we are using
def self.GetTestMprsFromDB(dataServer,database,query)
mprids = Array.new
client = TinyTds::Client.new(:dataserver => dataServer, :database => database, :timeout => 1000)
When stepping into tiny_tds on initialize
def initialize(opts={})
if opts[:password] && opts[:password].to_s.strip != ''
opts[:password] = opts[:password].to_s
warn 'FreeTDS may have issues with passwords longer than 30 characters!' if opts[:password].length > 30
end
raise ArgumentError, 'missing :host option if no :dataserver given' if opts[:dataserver].to_s.empty? && opts[:host].to_s.empty?
#query_options = ##default_query_options.dup
opts[:appname] ||= 'TinyTds'
opts[:tds_version] = TDS_VERSIONS_SETTERS[opts[:tds_version].to_s] || TDS_VERSIONS_SETTERS['71']
opts[:login_timeout] ||= 60
opts[:timeout] ||= 5
opts[:encoding] = (opts[:encoding].nil? || opts[:encoding].downcase == 'utf8') ? 'UTF-8' : opts[:encoding].upcase
opts[:port] ||= 1433
opts[:dataserver] = "#{opts[:host]}:#{opts[:port]}" if opts[:dataserver].to_s.empty?
connect(opts)
end
At end it throws the error