diff --git a/fhem/CHANGED b/fhem/CHANGED
index 3193ac031..2f448a3e3 100644
--- a/fhem/CHANGED
+++ b/fhem/CHANGED
@@ -1,5 +1,6 @@
 # Add changes at the top of the list. Keep it in ASCII, and 80-char wide.
 # Do not insert empty lines here, update check depends on it.
+ - bugfix:  70_BRAVIA: fix registration renewal
  - change:  49_IPCAM: imageWithCallback wrapped in internalTimer with 0 delay
  - bugfix:  47_OBIS: Reintegrate buggy DZG meters support
  - change:  49_IPCAM: introduced attribute httpTimeout
diff --git a/fhem/FHEM/70_BRAVIA.pm b/fhem/FHEM/70_BRAVIA.pm
index d96589773..07553dc84 100644
--- a/fhem/FHEM/70_BRAVIA.pm
+++ b/fhem/FHEM/70_BRAVIA.pm
@@ -2214,8 +2214,10 @@ sub CheckRegistration {
   my ( $hash, $service, $cmd, $param, @successor ) = @_;
   my $name = $hash->{NAME};
 
-  if (ReadingsVal($name, "authCookie", "") ne "" and
-      ReadingsTimestamp($name, "authCookie", "") =~ m/^(\d{4})-(\d{2})-(\d{2}) ([0-2]\d):([0-5]\d):([0-5]\d)$/xms) {
+  my $authCookie = ReadingsVal($name, "authCookie", "");
+  my $authCookieTS = ReadingsTimestamp($name, "authCookie", "");
+  if ($authCookie ne "" and
+      $authCookieTS =~ m/^(\d{4})-(\d{2})-(\d{2})\ ([0-2]\d):([0-5]\d):([0-5]\d)$/xms) {
 
     my $time = fhemTimeLocal($6, $5, $4, $3, $2 - 1, $1 - 1900);
     # max age defaults to 14 days
@@ -2235,12 +2237,16 @@ sub CheckRegistration {
         $msg .= " $i: ";
         $msg .= join(",", map { defined($_) ? $_ : '' } @succ_item);
       }
-      Log3($name, 4, "BOTVAC created".$msg);
+      Log3($name, 4, "BRAVIA $name: created".$msg);
 
       SendCommand( $hash, "register", "renew", undef, @successor );
 
       return 1;
+    } else {
+      Log3($name, 5, "BRAVIA $name: registration valid until $authCookieTS");
     }
+  } else {
+      Log3($name, 4, "BRAVIA $name: authCookie not valid '$authCookie $authCookieTS'");
   }
   return;
 }
diff --git a/fhem/t/FHEM/70_BRAVIA/CheckRegistration.t b/fhem/t/FHEM/70_BRAVIA/CheckRegistration.t
new file mode 100644
index 000000000..dc329541c
--- /dev/null
+++ b/fhem/t/FHEM/70_BRAVIA/CheckRegistration.t
@@ -0,0 +1,40 @@
+################################################
+# test Set
+################################################
+package FHEM::BRAVIA;
+
+use strict;
+use warnings;
+use Test::More;
+
+# used to import of FHEM functions from fhem.pl
+use GPUtils qw(:all);
+BEGIN {
+    GP_Import(
+        qw(
+            fhem
+            FhemTestUtils_gotLog
+            FhemTestUtils_resetLogs
+        )
+    );
+}
+
+# execute checkRegistration
+{
+    CheckRegistration($::defs{tv});
+}
+is(FhemTestUtils_gotLog("BRAVIA tv: authCookie not valid ' '"), 1, "Registration missing");
+
+FhemTestUtils_resetLogs();
+
+fhem('setreading tv authCookie test');
+{
+    CheckRegistration($::defs{tv});
+}
+is(FhemTestUtils_gotLog("BRAVIA tv: authCookie not valid '.*'"), 0, "Registration valid");
+is(FhemTestUtils_gotLog("BRAVIA tv: registration valid until .*"), 1, "Registration period");
+
+done_testing;
+exit(0);
+
+1;
\ No newline at end of file