increased image size and for null object exception for TVIP311PI

app/Http/Business/Cameras/Trendnet/TVIP311PI.php

             $this->_client->request('GET', $this->_url);
         } catch (RequestException $e) {
             $response = $e->getResponse();
-            if ($response->getStatusCode() == 401) {
+            if ($response != null && $response->getStatusCode() == 401) {
                 $nonce = array();
                 preg_match("/nonce=\"([a-f0-9]+)\"/", $response->getHeader("WWW-Authenticate")[0], $nonce);
                 $nonce = $nonce[1];
             }
+            else {
+              LuLog::log($e);
+            }
+
         } catch (\Exception $e) {
             LuLog::log($e);
         }
                 "Connection: close\r\n".
                 "Accept: */*\r\n\r\n");
             $data = "";
-            while(substr_count($data, "--boundarySample") < 2 && socket_recv($sock, $buf, 1024, 0) && strlen($data) < 35000)
+            while(substr_count($data, "--boundarySample") < 2 && socket_recv($sock, $buf, 1024, 0) && strlen($data) < 50000)
                 $data .= $buf;
             socket_close($sock);
             if(substr_count($data, "--boundarySample") >= 2)