As　an　emerging　portable　service　platform,　OSGi　(Open　Service　Gateway　Initiative)　is　taking　a　more　and　more　important　role　in　modern　Service　Oriented　Architectures　(SOA).　In　order　to　improve　the　capability　of　using　distributed　services　in　network-based　OSGi　applications,　R-OSGi　(Remote　OSGi)　is　invented.　However,　network-based　SOA　applications　are　prone　to　the　big　impact　on　Quality　of　Service　(QoS)　caused　by　network　instability　problem,　which　implies　that　developers　have　to　deal　with　the　potential　R-OSGi　networking　exceptions　at　application　layer.　In　this　paper,　we　present　an　improved　middleware　based　on　the　original　OSGi,　the　Robust　R-OSGi　(R2-OSGi　in　abbreviation),　which　can　deal　with　networking　exceptions　transparently　to　developers　beneath　the　application　layer.　The　middleware　can　automatically　detect　the　various　failures　which　might　occur　in　current　network　and　then　select　the　pre-defined　exception-handling　strategies　to　proceed.　©2010　IEEE.