Gateway Becomes Unresponsive Once a Day

RDS 2012 R2 with 1 GW, 1 CB and 3 SH's. 2 collections and less than 10 users (at the moment). This happens to every user. So, what appears to be, once a day the GW becomes unresponsive. You can't login (it hangs at Please wait....). You can't stop the VM with stop-vm <vm-name>. No one can connect from external (get can not connect to computer). All i can do is turn off from hyper-v manager. Upon reboot, everyone can connect. Here windows logs->application:

Warning3/12/2016 2:46:06 AMASP.NET 4.0.30319.01309Web Event

Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 3/12/2016 2:46:06 AM
Event time (UTC): 3/12/2016 7:46:06 AM
Event ID: 35e264785287416cbffae5de6d0edf3e
Event sequence: 428
Event occurrence: 1
Event detail code: 0

Application information:
    Application domain: /LM/W3SVC/1/ROOT/RDWeb/Feed-2-131022325701111364
    Trust level: Full
    Application Virtual Path: /RDWeb/Feed
    Application Path: C:\Windows\Web\RDWeb\Feed\
    Machine name: RDGateway

Process information:
    Process ID: 4224
    Process name: w3wp.exe
    Account name: IIS APPPOOL\RDWebAccess

Exception information:
    Exception type: NullReferenceException
    Exception message: Object reference not set to an instance of an object.
   at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.PrepareRdpFile(String& rdp_contents, String fileExtension, String ts_name, String alias, String& rdp_file_url, String& rdp_file_name, DateTime requestTime)
   at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.ProcessPublishedApp(String alias, String name, String resourceFile, String fileExtension, Byte[] iconContents, UInt32 pceIconSize, Int32 resourceType, FileExtensionInfo[] fileAssociations, String[] folderNames, String securityDescriptor, ArrayList& apps, DateTime requestTime, UInt64 lastUpdateTime)
   at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.GetFreshApps(DateTime requestTime)
   at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.OnCacheItemRemoved(String key, Object value, CacheItemRemovedReason removedReason)
   at System.Web.Caching.CacheEntry.CallCacheItemRemovedCallback(CacheItemRemovedCallback callback, CacheItemRemovedReason reason)



Request information:
    Request URL:
    Request path:
    User host address:
    User:
    Is authenticated: False
    Authentication Type:
    Thread account name: IIS APPPOOL\RDWebAccess

Thread information:
    Thread ID: 172
    Thread account name: IIS APPPOOL\RDWebAccess
    Is impersonating: False
    Stack trace:    at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.PrepareRdpFile(String& rdp_contents, String fileExtension, String ts_name, String alias, String& rdp_file_url, String& rdp_file_name, DateTime requestTime)
   at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.ProcessPublishedApp(String alias, String name, String resourceFile, String fileExtension, Byte[] iconContents, UInt32 pceIconSize, Int32 resourceType, FileExtensionInfo[] fileAssociations, String[] folderNames, String securityDescriptor, ArrayList& apps, DateTime requestTime, UInt64 lastUpdateTime)
   at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.GetFreshApps(DateTime requestTime)
   at Microsoft.TerminalServices.Publishing.Portal.RWSCPUBAccessor.OnCacheItemRemoved(String key, Object value, CacheItemRemovedReason removedReason)
   at System.Web.Caching.CacheEntry.CallCacheItemRemovedCallback(CacheItemRemovedCallback callback, CacheItemRemovedReason reason)


Custom event details: 

Error3/11/2016 5:26:14 PMESENT455Logging/Recovery

svchost (3576) Error -1032 (0xfffffbf8) occurred while opening logfile C:\Windows\system32\LogFiles\Sum\Api.log

Warning3/12/2016 3:34:23 AMVSS31None

Volume Shadow Copy Service Warning: A writer with name System Writer and ID {e8132975-6f93-4464-a53e-1050253ae220} waited 4294967 seconds for in-progress calls to complete before shutting down. 

Error3/12/2016 9:16:24 AMPerflib1008None

The Open Procedure for service "BITS" in DLL "C:\Windows\System32\bitsperf.dll" failed. Performance data for this service will not be available. The first four bytes (DWORD) of the Data section contains the error code

Warning3/12/2016 9:19:21 AMWinlogon6005None

The winlogon notification subscriber <Profiles> is taking long time to handle the notification event (Logon).

Here is Microsoft-Windows-TerminalServices-Gateway/Admin:

Error3/5/2016 11:19:20 PMTerminalServices-Gateway523(4)

The connection authorization policy "RDG_CAP_AllUsers" could not be created. The following error occurred: "183".

But there is already a RDG_CAP_AllUsers.........

Error3/5/2016 11:19:21 PMTerminalServices-Gateway543(5)

The resource authorization policy (RAP) "RDG_AllDomainComputers" could not be created. The following error occurred: "183". To resolve this issue, ensure that you have configured RAP settings correctly and set the correct value and permissions for the RAP.xml file and the RAPStore registry key.

But this policy already exists.........

Here is Microsoft-Windows-TerminalServices-Gateway/Operational:

Nothing but information in here........

Here is Microsoft-Windows-TerminalServices-RemoteConnectionManager/Admin:

Warning3/12/2016 10:02:09 AMTerminalServices-RemoteConnectionManager20499None

Remote Desktop Services has taken too long to load the user configuration from server \\server.domain.com for user administrator

This appears to be from when the GW was in a non-responsive state according to the time stamp......

I scanned for viruses and nothing was found (used malwarebytes). Any ideas?