I also have this problem. I had the "LiveTV error, exited early" on my HTPC which is run by an i3. If I restarted the PC the problem went away for a day or so...Both ServerWMC and Kodi 14.1 were on the same PC there. I couldn't find a pattern to which made the problem re-occur. The Log files at that time were the same as now. I'll post them to pastebin.com as suggested and links below. To simplify what I "think" I found, the log file had an error with a string "String wzFilename" and a reference to a video stream. I have some coding experience so I figured from this there was either a syntax coding error, a problem with the file location its self, or some issue with the video stream or the reference to the stream. About three lines below there is a similar error for a function that just has the wzFilename as input, this lead me to believe it was a file permission issue. I googled the issue and there wasn't much, just this thread with no solution or anyone posting any real debug logs. The suggestion seemed to be that there was a permission issue...but this didn't make sense being as both server and kodi were running on the same computer with the ip address of 127.0.0.1...which points to its self. I was having trouble with channels not always loading and taking more than 20 seconds to load as well. I figured it was possibly weak cpu problem. I moved ServerWMC to my main desktop an OC i5 @ 4.3Ghz with 16GB of ram a 240ssd and moved the 2TB HD(for recordings) to my desktop.
Now channel changing is WAY more stable and quicker YAH! I've had it this was for a few weeks now, no LiveTV error...untill tonight. This morning at 7am everything worked fine, even after I updated to 1190. Tonight, last night now that I took so long to write this, at about 10pm after the kids went to bed and ppl wanted to watch TV...all of the Kodi devices said "LiveTV error, exited early". The ONLY difference was Kodi on my desktop said there was an error and to check the logs. I check the logs, same as before.
And yes, I tried all of the simple stuff. I restarted Kodi, then ServerWMC, then the PC. Nothing. On the i3 I went so far as to reformat the computer thinking I had screwed something up...nope. Moved to the i5, problem went away till now...I uninstalled 1190 and resinstalled 1175, no effect. Restarted the PC again, nothing. The only thing I haven't tried so far is to do the WMC setup again...But there HAS to be some bug in the code that is, for a lack of a better term, forgetting the live tv folder.
I did a courtesy check of WMC to see if it can watch tv...irritatingly yup...also the media location for TV is correct.
Also I can play recordings as well as files from the "recording now" folder...just not live tv...
Krusty, if you would like you could send me a ServerWMC version with a more verbose log file, ie spitting out the variables that made the function crash. I may be able to assist in figuring this out, at least id like to try.
ServerWMC 1190 log -
http://pastebin.com/w3zdjew9
Kodi 14.1 log -
http://pastebin.com/vWbt6XtD
they will be good for 1 month
edit: A warm PC reboot didn't do squat...a cold boot how ever fixed the problem, at least for now. But please still look at the log Krusty, I'd appreciate it.