# SharePoint sites not opening locally IIS Error

- Link: https://sharepointtechnicalsupport.com/2015/04/28/sharepoint-sites-not-opening-locally-iis-error/
- Published: 2015-04-28T10:57:32+05:30
- Author: Deviprasad Panda

I am having this strange problem . All of a sudden all of the new sites created
in the SharePoint are not opening locally. And even iis is failing to pick up the
ip binding with a site. All my existing sites when browsed from IIS manager are 
giving certificate error and ultimately showing connection problem error. Only thing
that was done was the patching this week. I have no idea why all this is happening.
Has any one faced similar problems before.

**Solution :**

 * try **stopping** the **Foundation Web service** on the affected farm member and**
   re-starting it**.
 * If you were adding SSL certs to the IIS sites, it may be a case of attempting
   to use the same IP with different SSL certificates across IIS web sites.  IIS
   7.5 and below do not support SNI, so you have to have a unique IP:SSL Cert combination,
   or get a Wildcard or SAN certificate instead.

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