diff --git a/poky/meta/classes/sstate.bbclass b/poky/meta/classes/sstate.bbclass
index aa9c30b..375196e 100644
--- a/poky/meta/classes/sstate.bbclass
+++ b/poky/meta/classes/sstate.bbclass
@@ -355,6 +355,9 @@
     d.setVar('SSTATE_INSTDIR', sstateinst)
 
     if bb.utils.to_boolean(d.getVar("SSTATE_VERIFY_SIG"), False):
+        if not os.path.isfile(sstatepkg + '.sig'):
+            bb.warn("No signature file for sstate package %s, skipping acceleration..." % sstatepkg)
+            return False
         signer = get_signer(d, 'local')
         if not signer.verify(sstatepkg + '.sig'):
             bb.warn("Cannot verify signature on sstate package %s, skipping acceleration..." % sstatepkg)
@@ -733,10 +736,11 @@
         localdata.setVar('SRC_URI', srcuri)
         try:
             fetcher = bb.fetch2.Fetch([srcuri], localdata, cache=False)
+            fetcher.checkstatus()
             fetcher.download()
 
         except bb.fetch2.BBFetchException:
-            break
+            pass
 
 def sstate_setscene(d):
     shared_state = sstate_state_fromvars(d)