vcenter 5.5 update seems hung

Hello all,

I have Vcenter  with this details:

I'm trying to install the update to 5.5.0.20200 Build 2183109,

I started te update from the web console from port 5480 , and after 3 or 4 hours ago and the message that I see is this:

Installing VMware vCenter Server Appliance - 5.5.0.20200 Build 2183109, please wait..

Any ideas?? I'm worry about it, my vcenter now is working, but the update proccess seems totally hung!

No error message displayed, but obviusly some is going bad....

thanks in advance