Echolink calls are rejected on ASL3 node

Using ASL3 with RP4. Node works beautifully on all-star calls, however we have not been able to get node to accept echolink calls. Below is screenshot of what happens when 2 echolink calls come in. Any suggestions greatly appreciated. Node no. Is 321424 echolink, 62886 all-star. Echolink node is registering on Echolink web site. Also passes firewall test. But will not answer incoming calls.

Error message is “cannot find system node 1999”

In your /etc/asterisk/echolink.conf file, did you update astnode = ...?