Hi! The ReconnectingClientFactory class allows to define the instance variable maxDelay. Its documentation is "Maximum number of seconds between connection attempts." maxDelay is used in the retry() method to bound self.delay. But this happens in the _first_ step of the calculation of self.delay. Afterwards, the bounded value is modified again by applying random.normalvariate to allow for the jitter. This can result in a value that is considerably bigger than maxDelay. Is there any reason that maxDelay is not used for bounding the final result of the calculation of self.delay? If not, the calculation should be fixed - I'd be happy to file an issue ;-). Best regards, Albert -- Albert Brandl Weiermayer Solutions GmbH | Abteistraße 12, A-4813 Altmünster phone: +43 (0) 720 70 30 14 | fax: +43 (0) 7612 20 3 56 web: http://www.weiermayer.com