@JohnnyWANG 

EAP673EU FIRMWARE

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EAP673EU POWER

EAP673AU FIRMWARE

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EAP673AU POWER

  @JohnnyWANG 

In the TP-Link community, a user discussing channel issues with the EAP670 (EU version) for use in Australia mentioned that high channels are available but not visible in the Omada Controller interface, or showing channels that can be optionally disabled (e.g., 120, 124, 128 channels). The post said:

“Channels 120, 124 and 128, which are prohibited in Australia, can be selected for use in the controller.” TP-Link Community
“TP-Link is selling the (EU) version of their EAP products in Australia and reusing the (EU) firmware which disables 149–165 … and enables 120/124/128 which are prohibited in Australia.” TP-Link Community

In another TP-Link community post, a user said they bought the EU version of the AP, and after setting the country to Australia, the interface only shows the low 5GHz channels (e.g. 35-64 & 100-128), while the legal AU high channels (149-161) aren't shown:

“On the EU outdoor AP the 5Ghz channels are 35-64 & 100-128 … none of them are suitable to use. Where are the higher channels 149-161 which are legal in Australia…” TP-Link Community

These user reports are very similar to what you are describing - i.e. the device firmware is displaying or allowing certain channels that are not allowed in Australian regulations.

According to ACMA and Australia’s official spectrum planning documents, certain 5 GHz channels are indeed restricted. The key points are:

• Based on information from Wireless Professional Solutions (WISP), channels 120, 124, and 128 (center frequencies around 5600–5650 MHz) are “Not Permitted” for use in Australia.

• The WISP channel table explicitly states:

  “120 / 124 / 128 — Not Permitted” in Australia.  ireless Professional S

• The commonly used higher channels (149, 153, 157, 161, 165 MHz, roughly 5745–5825 MHz) are allowed in Australia, provided that power limits, DFS/TPC requirements, and other conditions are met.

• However, there has been community discussion about Channel 144 (around 5710–5730 MHz). Some users point out that since Australia’s regulatory upper limit is 5725 MHz, Channel 144 may exceed the permitted range, raising doubts about its legality.