<s:Envelope rather than <SOAP-ENV:Envelope.
My guess is that DNS entries are wrong for the new vlan, so I'll pursue that angle.<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://www.w3.org/2003/05/soap-envelope" xmlns:SOAP-ENC="http://www.w3.org/2003/05/soap-encoding" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:dn="http://www.onvif.org/ver10/network/wsdl" xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing">
<SOAP-ENV:Header>
<wsa:MessageID>uuid:d336818e-000e-11ea-b621-b0c5540f037a
</wsa:MessageID>
<wsa:RelatesTo>uuid:990aff51-019f-4da0-abcd-5119faa14661
</wsa:RelatesTo>
<wsa:To SOAP-ENV:mustUnderstand="true">http://schemas.xmlsoap.org/ws/2005/04/addressing/role/anonymous
</wsa:To>
<wsa:Action SOAP-ENV:mustUnderstand="true">http://schemas.xmlsoap.org/ws/2005/04/discovery/ProbeMatches
</wsa:Action>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<d:ProbeMatches>
<d:ProbeMatch>
<wsa:EndpointReference>
<wsa:Address>urn:uuid:77bae9cb-79c0-71bc-e3c1-b0c5540f037a
</wsa:Address>
</wsa:EndpointReference>
<d:Types>dn:NetworkVideoTransmitter
</d:Types>
<d:Scopes>onvif://www.onvif.org/type/video_encoder onvif://www.onvif.org/type/audio_encoder onvif://www.onvif.org/location/taiwan onvif://www.onvif.org/hardware/DCS-5029L onvif://www.onvif.org/name/DCS-5029L onvif://www.onvif.org/vendor/D-Link%20Corporation onvif://www.onvif.org/Profile/Streaming
</d:Scopes>
<d:XAddrs>http://192.168.7.135/onvif/device_service
</d:XAddrs>
<d:MetadataVersion>1000
</d:MetadataVersion>
</d:ProbeMatch>
</d:ProbeMatches>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<s:Envelope xmlns:sc="http://www.w3.org/2003/05/soap-encoding" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:dn="http://www.onvif.org/ver10/network/wsdl" xmlns:tds="http://www.onvif.org/ver10/device/wsdl" xmlns:d="http://schemas.xmlsoap.org/ws/2005/04/discovery" xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing">
<s:Header>
<a:MessageID>uuid:55ead128-a569-4ae5-9b47-2e7416e5ef5a
</a:MessageID>
<a:To>urn:schemas-xmlsoap-org:ws:2005:04:discovery
</a:To>
<a:Action>http://schemas.xmlsoap.org/ws/2005/04/discovery/ProbeMatches
</a:Action>
<a:RelatesTo>uuid:88aadf52-504a-4da0-abcd-076f0977466c
</a:RelatesTo>
</s:Header>
<s:Body>
<d:ProbeMatches>
<d:ProbeMatch>
<a:EndpointReference>
<a:Address>uuid:ed397a0b-b8a9-3929-506e-cf584e85b8a9
</a:Address>
</a:EndpointReference>
<d:Types>dn:NetworkVideoTransmitter tds:Device
</d:Types>
<d:Scopes>onvif://www.onvif.org/location/country/America onvif://www.onvif.org/name/LOREX onvif://www.onvif.org/hardware/LNB8105X onvif://www.onvif.org/Profile/Streaming onvif://www.onvif.org/type/Network_Video_Transmitter onvif://www.onvif.org/extension/unique_identifier
</d:Scopes>
<d:XAddrs>http://192.168.101.5/onvif/device_service
</d:XAddrs>
<d:MetadataVersion>1
</d:MetadataVersion>
</d:ProbeMatch>
</d:ProbeMatches>
</s:Body>
</s:Envelope>
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