Scratch that. At 1 second past 11PM I started receiving the termination requests again. I've had 82 disconnections in that past 9 hours.
Out of nowhere I receive a disconnection request. The link shuts down in an orderly manner. Then, before the link finally terminates I get an authentication request of all things. I've included a typical bit of log below.
02:13:42 : rcvd [LCP ConfReq id=0x2 <mru 1500> <asyncmap 0x0> <auth chap MD5> <pcomp> <accomp>]
02:13:42 : Connect time 3.2 minutes.
02:13:42 : Sent 305 bytes, received 1729 bytes.
02:13:42 : Script /etc/ppp/ip-down started (pid 30572)
02:13:42 : sent [LCP ConfReq id=0x90 <asyncmap 0x0> <pcomp> <accomp>]
02:13:42 : sent [LCP ConfAck id=0x2 <mru 1500> <asyncmap 0x0> <auth chap MD5> <pcomp> <accomp>]
02:13:42 : Script /etc/ppp/ip-down finished (pid 30572), status = 0x0
02:13:42 : rcvd [LCP ConfAck id=0x90 <asyncmap 0x0> <pcomp> <accomp>]
02:13:42 : rcvd [CHAP Challenge id=0x1 <xxKEYxx>, name = "pdsn"]
02:13:42 : sent [CHAP Response id=0x1 <xxKEYxx>, name = "
[email protected]"]
02:13:42 : rcvd [CHAP Success id=0x1 "Welcome to pdsn."]
02:13:42 : CHAP authentication succeeded: Welcome to pdsn.
02:13:42 : CHAP authentication succeeded
02:13:42 : sent [IPCP ConfReq id=0x73 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
02:13:45 : sent [IPCP ConfReq id=0x73 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns3 0.0.0.0>]
02:13:47 : rcvd [LCP TermReq id=0x3]
02:13:47 : LCP terminated by peer
02:13:47 : sent [LCP TermAck id=0x3]
02:13:50 : Connection terminated.
02:13:51 : Hangup (SIGHUP)
02:13:51 : Modem hangup