**UPDATE** This issue has been corrected as of Receiver 5.9 for iOS**
So I’ve been running into this problem now a few times over the past couple of weeks and wanted to get the word out. Apparently the timing is just right and people who put SSL certificates on their NetScaler Gateway, Secure Gateway, or CAG are hitting that refresh cycle and renewing their SSL certificates and a lot of times it appears that went well…UNTIL they test and realize their mobile devices can no longer connect and are getting a generic “Connection Error. Citrix Receiver could not establish connection with the remote host/server”. If this is you..then read on..