Communications problems occur when the two peers cannot successfully establish a link. Sometimes these problems are actually negotiation problems that are caused by incorrectly configured chat scripts. The following procedure shows you how to clear communication problems. For clearing negotiation problems that are caused by a faulty chat script, see Common Chat Script Problems.
For more information, see Using Your Assigned Administrative Rights in Securing Users and Processes in Oracle Solaris 11.4.
$ pppd debug call peer-name
You might need to obtain debugging information from the peer in order to fix certain communications problems.
For more information, refer to General Communications Problems That Affect PPP.