Gateway Becomes Unresponsive Once a Day

rds 2012 r2 1 gw, 1 cb , 3 sh's. 2 collections , less 10 users (at moment). happens every user. so, appears be, once day gw becomes unresponsive. can't login (it hangs @ please wait....). can't stop vm stop-vm <vm-name>. no 1 can connect external (get can not connect computer). can turn off hyper-v manager. upon reboot, can connect. here windows logs->application:

warning 3/12/2016 2:46:06 am asp.net 4.0.30319.0 1309 web event

event code: 3005   event message: unhandled exception has occurred.   event time: 3/12/2016 2:46:06   event time (utc): 3/12/2016 7:46:06   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 instance of object.     @ 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)     @ 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)     @ microsoft.terminalservices.publishing.portal.rwscpubaccessor.getfreshapps(datetime requesttime)     @ microsoft.terminalservices.publishing.portal.rwscpubaccessor.oncacheitemremoved(string key, object value, cacheitemremovedreason removedreason)     @ system.web.caching.cacheentry.callcacheitemremovedcallback(cacheitemremovedcallback callback, cacheitemremovedreason reason)          request information:       request url:        request path:        user host address:        user:        authenticated: false       authentication type:        thread account name: iis apppool\rdwebaccess      thread information:       thread id: 172       thread account name: iis apppool\rdwebaccess       impersonating: false       stack trace:    @ 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)     @ 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)     @ microsoft.terminalservices.publishing.portal.rwscpubaccessor.getfreshapps(datetime requesttime)     @ microsoft.terminalservices.publishing.portal.rwscpubaccessor.oncacheitemremoved(string key, object value, cacheitemremovedreason removedreason)     @ system.web.caching.cacheentry.callcacheitemremovedcallback(cacheitemremovedcallback callback, cacheitemremovedreason reason)        custom event details: 

error 3/11/2016 5:26:14 pm esent 455 logging/recovery

svchost (3576) error -1032 (0xfffffbf8) occurred while opening logfile c:\windows\system32\logfiles\sum\api.log

warning 3/12/2016 3:34:23 am vss 31 none

volume shadow copy service warning: writer name system writer , id {e8132975-6f93-4464-a53e-1050253ae220} waited 4294967 seconds in-progress calls complete before shutting down. 

error 3/12/2016 9:16:24 am perflib 1008 none

the open procedure service "bits" in dll "c:\windows\system32\bitsperf.dll" failed. performance data service not available. first 4 bytes (dword) of data section contains error code

warning 3/12/2016 9:19:21 am winlogon 6005 none

the winlogon notification subscriber <profiles> taking long time handle notification event (logon).

here microsoft-windows-terminalservices-gateway/admin:

error 3/5/2016 11:19:20 pm terminalservices-gateway 523 (4)

the connection authorization policy "rdg_cap_allusers" not created. following error occurred: "183".

but there rdg_cap_allusers.........

error 3/5/2016 11:19:21 pm terminalservices-gateway 543 (5)

the resource authorization policy (rap) "rdg_alldomaincomputers" not created. following error occurred: "183". resolve issue, ensure have configured rap settings correctly , set correct value , permissions rap.xml file , rapstore registry key.

but policy exists.........

here is microsoft-windows-terminalservices-gateway/operational:

nothing information in here........

here is microsoft-windows-terminalservices-remoteconnectionmanager/admin:

warning 3/12/2016 10:02:09 am terminalservices-remoteconnectionmanager 20499 none

remote desktop services has taken long load user configuration server \\server.domain.com user administrator

this appears when gw in non-responsive state according time stamp......

i scanned viruses , nothing found (used malwarebytes). ideas?

a couple of other things noticed when gw in state: remoteapp never connects - it hangs forever without ever launching. dialog box appears saying connecting host, never gets further. in fact, appears crash unable cancel without using task manager force end process.

secondly, remote desktop gateway service not start. when @ service set automatic (delayed start). have manually start service. should set delayed start? found hotfix seems fixes 2 issues when running it, says not computer?

https://support.microsoft.com/en-us/kb/3042843

i can't link of event logs issue events happen when gw responsive , working. have ideas?

Windows Server  >  Remote Desktop Services (Terminal Services)