this sounds like a configuration issue. [ad_conn peeraddr] is controlled via the parameter "ReverseProxyMode" in the "ns/parameters" section in the config file [1]. For details, see [2].
best regards -gn
[1] https://bitbucket.org/naviserver/naviserver/src/748f415a9979077d917bbb957ff9e9ce0551ebff/openacs-config.tcl?at=default&fileviewer=file-view-default#openacs-config.tcl-147 [2] https://openacs.org/api-doc/proc-view?proc=ad_conn&source_p=1
