You originally mailed about an error on the client, and now you found corresponding server logs, which suggests a veritable network issue. Are the postgres clients and server on the same subnet ? If not, what are the intermediate routers ? Is there any NAT happening ? Do those devices have any interesting logs that correspond with the server/client connection failures ? Have you tried enabling TCP keepalives ? This might help to convince a NAT device not to forget about your connection. https://www.postgresql.org/docs/current/runtime-config-connection.html tcp_keepalives_idle=9 tcp_keepalives_interval=9 tcp_keepalives_count=0 tcp_user_timeout=0 -- You apparently have this set, but it cannot work on windows, so just generates noise. On linux, you can check the keepalive counters in "netstat -not" to be sure that it's enabled. A similar switch hopefully exists for windows. -- Justin
