IP addresses
Use an IP address rather than a Domain. Even "localhost" can cause delays on some systems.
web.config
Check that the ishare.config value in ...\iShare\n.n\WebApps\Web\web.config is as follows
...
where x.x.x.x is the IP Address and n.n is the version of iShare.
Studio Settings
Run Studio and check that IP addresses are used in the following parameters:
...
Where ALL is the most verbose down to OFF where no logging is performed.
Please see the topic Application Logging for more details