diff --git a/tclcheck_all.py b/tclcheck_all.py
index 536603b..5bf25d2 100644
--- a/tclcheck_all.py
+++ b/tclcheck_all.py
@@ -5,7 +5,7 @@
 
 import tcllib
 import sys
-from requests.exceptions import RequestException
+from requests.exceptions import RequestException, Timeout
 
 fc = tcllib.FotaCheck()
 fc.serid = "3531510"
@@ -28,6 +28,9 @@ for prdline in prds:
         check_xml = fc.do_check()
         curef, fv, tv, fw_id, fileid, fn, fsize, fhash = fc.parse_check(check_xml)
         print("{}: {} {} ({})".format(prd, tv, fhash, model))
+    except Timeout as e:
+        print("{} failed. (Connection timed out.)".format(prd))
+        continue
     except (SystemExit, RequestException) as e:
         print("{} failed. ({})".format(prd, str(e)))
         continue
diff --git a/tcllib.py b/tcllib.py
index a9b6838..22ad245 100644
--- a/tcllib.py
+++ b/tcllib.py
@@ -87,6 +87,8 @@ class FotaCheck:
             return req.text
         elif req.status_code == 204:
             raise requests.exceptions.HTTPError("No update available.", response=req)
+        elif req.status_code in (500, 503):
+            raise requests.exceptions.HTTPError("Server busy, try again later.", response=req)
         else:
             req.raise_for_status()
             raise requests.exceptions.HTTPError("HTTP {}.".format(req.status_code), response=req)