I have to restart wallet every couple of hours as it stuck and do not want to solo mine from didicated miner.

Maybe this would help:

Quote from the Litecoin Release Notes:
"win32 builds contained a problematic version of the boost library that would occasionally cause all network activity to fail until the client is restarted.  This annoyance was solved with an upgrade to boost-1.55 for the win32 builds." http://blog.litecoin.org/2014/01/litecoin-0862-release-notes.html