2.18t June 2011 1) Possible problem with setting the keys (applies only to PEAP or TLS) fixed. The keys are now only set in thread 0 2) Debug output is now sent via UDP only in thread 0 3) WGB-Mode: There was the possibility that MAC cloned packets were sent after the connection was established although the WGB-Mode is active. The WLC (Vers. 7.0.116.0) reacts when such a packet arrives from a WGB client with an "exclude" to the affected WGB client. This error has been fixed. 4) WGB-Mode: The LAN client login sent by the WGB client is apparently sometimes not processed correctly by the WLC (Vers. 7.0.116.0). so that the login has to be repeated. The login of a LAN client to the WLC is now repeated up to 5 times in intervals of 2 seconds if no data for this cleint is received. As soon as data for the LAN client is received, the registration is considered ok. 2.18u Sep 2011 1) The DHCP function has been extended so that the ESCG will assume a configurable IP address after a configurable time in which an IP configuration was unsuccessfully requested. configurable IP address. This avoids that the WI-Client is connected with the IP address 0.0.0.0 when the WLAN connection is not working. IP address 0.0.0.0 if the WLAN connection is not working. 2) Only for devices with RS485 option: Change in the driver for the serial interface. If SER1 is configured as RS485, the last character sent was received on each sent character was also received. This is now prevented by delaying the receive enable. 2.19g Nov 2013 1) Added the "Send ARP probes" function. This allows to check the IP address of the WLX to check if it already exists in the WLAN network. To do this, ARP probes are first sent over the WLAN. 3 ARP probes are sent at intervals of 2 seconds. If no response is received, the WLAN connection is released. If a device with the same IP responds, the WLAN connection is not released. After 20 seconds, a new attempt is started. 2.19i Jan 2014 1) Bug in 802.1x supplicant. This caused authentication errors on some radius servers. 2) DHCP client: If no IP address was assigned within approx. 120 seconds with an existing WLAN connection, the ESCG performs a reboot. 2.19m July 2021 1) Some WLAN controllers with updated firmware recently specify EAP version 3 as the method for authentication. The ESCG previously rejected this, so authentication was aborted. With the 2.19m firmware this version 3 is accepted and the authentication process continues.