This happens constantly and i want to know if there is a way to make it stop logging everything to Event Viewer.  I know i can setup filters and everything, but it would be much better if it just didn't happen or i could find a way to "fix" whatever the issue is.  it doesn't seem to hurt any users or anything, it's just an annoyance because there are 100's of these things.  here is what i see (obviously with certain information redacted):

 

Event code: 4005 
Event message: Forms authentication failed for the request. Reason: The ticket supplied was invalid. 
Event time: 1/5/2015 7:15:21 PM 
Event time (UTC): 1/6/2015 12:15:21 AM 
Event ID: 29b1be87fd5f4376a842d4caa876b63f 
Event sequence: 21986 
Event occurrence: 8346 
Event detail code: 50201 
 
Application information: 
    Application domain: /LM/W3SVC/2/ROOT-1-130649395452316258 
    Trust level: Full 
    Application Virtual Path: / 
    Application Path: D:\Webs\PathToSmarterTrack\SmarterTrack\ 
    Machine name: ************
 
Process information: 
    Process ID: 1184 
    Process name: w3wp.exe 
    Account name: NT AUTHORITY\NETWORK SERVICE 
 
Request information: 
    Request URL: http://**************/Services/svcLocal.asmx/KeepAlive 
    Request path: /Services/svcLocal.asmx/KeepAlive 
    User host address: ************** 
    User:  
    Is authenticated: False 
    Authentication Type:  
    Thread account name: NT AUTHORITY\NETWORK SERVICE 
 
Name to authenticate:  
 
Custom event details: