FIX: Zetafax Server shuts down intermittently when receiving fax messages via Zetafax Online Print ZTN2140 This Zetafax technical note applies to: Zetafax Version 17.5 Systems using Zetafax Online Symptom On very rare ocassions, Zetafax Server may shut down when receiving a fax message from the Zetafax Online service. There is no indication of a process terminating on the Zetafax Server logs, but when looking at the Windows Event Viewer, there will be an Application Error entry showing that the ROUTER process terminated. The Zetafax Server logs out the following error prior to the shutdown: ROUTER - Failed downloading image file (D:\Zetafax Server\USERS\SSMITH\Z-IN\~RECD123.G3F). Unknown error: 0 Cause This was caused by a deficiency in the error handling code when dealing with errors returned from the online service behind Zetafax Online. Resolution This fault was corrected in a hotfix, which is available by contacting Equisys Technical Support and quoting the technote number ZTN2140. This hotfix introduces some stability improvements and additional debug logging. Status This behaviour was corrected in the hotfix detailed above. Last updated: 21st May 2020 (NT) Keywords: Interfax, crash ServerZetafax Online Related articles HOWTO: Enable TLS 1.2 on a server running Zetadocs or the Zetafax Server FIX: Unable to dial to 7-digit numbers with Zetafax Online HOWTO: Test Zetafax Online for July 2020 service change continuity FIX: Zetafax Server computer name truncated to 14 characters FIX: Some pages in a fax received using Zetafax Online appear squashed or stretched