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TP-Link Archer C20 v4 00000004
In this model, the "Reauthentication period" setting is not available, but the router does honor the timeout specified by the RADIUS server. Operation mode can be set to "Access Point". All other settings should be set as mentioned above. This is a dual band router and some settings need to be set in two places, once for each SSID.
TP-Link TD-W8968 V4 0x00000001
In this model, the "Reauthentication period" setting is available as "Network Re-auth Interval", and the router also does honor the timeout specified by the RADIUS server overriding the setting specified here if it is lower '@@@', and follows whichever is smaller. Operation mode can be set to "Wireless Router Mode". All other settings should be set as mentioned above.
TP-Link TL-WR740N v4 00000000
In this model, the "Reauthentication period" setting is not available, and the router does not honor the timeout specified by the RADIUS server. Judging by the source code of the very old version of hostapd running on this router, it is believed (but not tested) that, once authenticated, the router might allow the supplicant to continue being part of the network for up to twelve hours without querying the RADIUS server again. No operation mode setting is available '@@@'. All other settings should be set as mentioned above.
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