A disconnect that occurs specifically when the radio transmits should be investigated as a transmit-correlated fault. Radio power demand, RF interference, cabling and software behavior can produce similar symptoms, so the timing alone does not establish the cause.
Collect a controlled comparison
- Record whether the Gateway reboots, only its radio connection drops, or only one remote client disconnects.
- Have a radio technician check supply voltage under transmit load, the specified Gateway adapter, connectors and grounding.
- Review antenna placement, radio output power and separation from the Gateway and network equipment. Compare the installation with the radio and Gateway siting guidance.
- Check whether a local client and remote clients fail together. Review switch/router events at the same timestamp.
- Record Gateway/client/radio versions and obtain the relevant logs before making repeated changes.
A brief, agreed test transmission can help correlate the fault with PTT. Stop repeated testing if it disrupts operational traffic. Antenna/feedline tests belong with a qualified technician using the proper load and test equipment; do not key a transmitter into an open antenna connection as a casual diagnostic.
If the Gateway stays powered and connected but the subscriber hears no speech, use the separate microphone/audio-path checks. If the Gateway also restarts, give CTI the power/RF observations and logs so a site issue can be separated from a version-specific or hardware fault.