After you have enabled mutual SSL on an accelerator, complete the following steps to disable it:
In the proxy server administration tool, click Configure, then click Web Server Accelerator.
Select the accelerator, then click Modify.
Click Authentication Options.
Select the profile that is performing mutual authentication, then click Delete.
Click Apply.
Click System, click Actions, then click Purge Cache.
Select Purge all of cache, then click Start Purge.
Users are denied access to the site until cache is purged because the users are still prompted for the certificate.