Is that ESX SSL certificate will affect citrix secure gateway and Cisco Loadbalancer

Hi Experts,

I have renewed the ESX host SSL certificate on Yestarday 15:00 hrs, after renew the certificate iam got page cannot be display on web page so i have revert back to orginal state every thing was working fine,in that we have 1 citrix secure gateway server and 5 windows Vm's are there,we have one more esx host it is having another 2 citrix secure gateway server 6 windows vs are there, for that ESX host we are not renew ssl certificate till Aug 2010 is the expired date.today morning 5:00 AM we have incident secure gateway is not accessible unable to RDP and ping from out side, except this  3 secure-gateway all the Guest Vm's are working fine on the esx host, we have restarted the secure gateway server and esx server the issue was not fixed finally they rebooted the cisco load balancer which is manage load balance 3 secure-gateway server the issue got fixed

Now my question is we have totally 3 citrix secure-gateway server all the 3 server's are connected to cisco load balancer,except this 3 server  all the guest Vm's are working fine,the Network team was saying Because of SSL Cisco Load balancer got the issue.as per my understanding "SSL certificates stored in the console are used to provide security and encryption for management sessions between the VirtualCenter Server and the COS. The same certificates are also used with clients directly connecting to ESX Servers"

Could you please help me out how do i prove this incident was not happened because of  SSL certificate renewal ?,and where is the exact ESX  log store and how do i fix this certificate issue.