diff --git a/contrib/db/liblmdb/mdb.c b/contrib/db/liblmdb/mdb.c
index ca9f3b12..f9b48233 100644
--- a/contrib/db/liblmdb/mdb.c
+++ b/contrib/db/liblmdb/mdb.c
@@ -133,7 +133,7 @@ extern int cacheflush(char *addr, int nbytes, int cache);
 #ifdef _WIN32
 typedef int64_t off64_t;
 #else
-typedef off_t off64_t;
+//typedef off_t off64_t;
 #endif
 
 
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 9eb0e524..f27305af 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -7,8 +7,8 @@ description: |
   The technology behind our blockchain provides reliability, security,
   and flexibility a perfect option for P2P transactions.
   More info: http://zano.org
-grade: devel
-confinement: devmode
+grade: stable
+confinement: strict
 
 architectures:
   - build-on: amd64
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 9ced041a..cf6e7987 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -158,6 +158,7 @@ void wallet2::init(const std::string& daemon_address)
 {
   m_miner_text_info = PROJECT_VERSION_LONG;
   m_core_proxy->set_connection_addr(daemon_address);
+  m_core_proxy->check_connection();
 }
 //----------------------------------------------------------------------------------------------------
 bool wallet2::set_core_proxy(const std::shared_ptr<i_core_proxy>& proxy)