Hi, I connect to my isp/internet using PPPoE no VLAN, the problem is if the line/connection is disconnected for more than 3~5 minutes the connection won't go back up again. The log always shows this pattern below over and over again. what I noticed is all the LCP config requests do not have any authentication configuration for some reason I even tried to put false credentials to see if I would get to the auth stage but no, the same error pattern exactly.
currently, I have a TP-Link vdsl2 modem in bridge mode. the only thing to bring the connection up is to connect a Zte modem (isp provided) and then switch back to the tp-link. so I thought maybe the isp does not like my modem so I spoofed its MAC address with the tp-link one but still no luck at all. also tried two different Huawei modems (also isp provided) but they has the same exact issue as the tp-link modem
one last thing all 4 modems above work fine when they are not in bridge mode
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: Send PPPOE Discovery V1T1 PADI session 0x0 length 12
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: dst ff:ff:ff:ff:ff:ff src d8:47:32:a3:29:05
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: [service-name] [host-uniq e1 4c 00 00]
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: Recv PPPOE Discovery V1T1 PADO session 0x0 length 54
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: dst d8:47:32:a3:29:05 src 98:03:9b:85:7b:de
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: [service-name] [AC-name MQATM2_A-R72A-C-EG] [host-uniq e1 4c 00 00] [AC-cookie 3b e8 1a 5a 25 ac 53 ec ce c7 fb 47 1b 3a e9 ae]
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: Send PPPOE Discovery V1T1 PADR session 0x0 length 32
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: dst 98:03:9b:85:7b:de src d8:47:32:a3:29:05
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: [service-name] [host-uniq e1 4c 00 00] [AC-cookie 3b e8 1a 5a 25 ac 53 ec ce c7 fb 47 1b 3a e9 ae]
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: Recv PPPOE Discovery V1T1 PADS session 0x1 length 12
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: dst d8:47:32:a3:29:05 src 98:03:9b:85:7b:de
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: [service-name] [host-uniq e1 4c 00 00]
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: PADS: Service-Name: ''
Fri May 20 09:26:00 2022 daemon.info pppd[19681]: PPP session is 1
Fri May 20 09:26:00 2022 daemon.warn pppd[19681]: Connected to 98:03:9b:85:7b:de via interface eth1
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: using channel 103
Fri May 20 09:26:00 2022 kern.info kernel: [ 3807.919577] pppoe-wan: renamed from ppp0
Fri May 20 09:26:00 2022 daemon.info pppd[19681]: Renamed interface ppp0 to pppoe-wan
Fri May 20 09:26:00 2022 daemon.info pppd[19681]: Using interface pppoe-wan
Fri May 20 09:26:00 2022 daemon.notice pppd[19681]: Connect: pppoe-wan <--> eth1
Fri May 20 09:26:00 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:03 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:03 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:03 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:06 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:06 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:06 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:09 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:09 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:09 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:12 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:12 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:12 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:15 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:15 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:15 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:18 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:18 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:18 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:21 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:21 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:21 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:24 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:24 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:24 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:27 2022 daemon.debug pppd[19681]: rcvd [LCP ConfReq id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:27 2022 daemon.debug pppd[19681]: sent [LCP ConfAck id=0xbe <mru 1492> <auth pap> <magic 0x2a3b4e7b>]
Fri May 20 09:26:27 2022 daemon.debug pppd[19681]: sent [LCP ConfReq id=0x1 <mru 1492> <magic 0x6dd4b6b2>]
Fri May 20 09:26:30 2022 daemon.warn pppd[19681]: LCP: timeout sending Config-Requests
Fri May 20 09:26:30 2022 daemon.notice pppd[19681]: Connection terminated.
Fri May 20 09:26:30 2022 daemon.debug pppd[19681]: Send PPPOE Discovery V1T1 PADT session 0x1 length 28
Fri May 20 09:26:30 2022 daemon.debug pppd[19681]: dst 98:03:9b:85:7b:de src d8:47:32:a3:29:05
Fri May 20 09:26:30 2022 daemon.debug pppd[19681]: [host-uniq e1 4c 00 00] [AC-cookie 3b e8 1a 5a 25 ac 53 ec ce c7 fb 47 1b 3a e9 ae]
Fri May 20 09:26:30 2022 daemon.info pppd[19681]: Sent PADT
Fri May 20 09:26:30 2022 daemon.notice pppd[19681]: Modem hangup
Fri May 20 09:26:30 2022 daemon.info pppd[19681]: Exit.
Fri May 20 09:26:30 2022 daemon.err insmod: module is already loaded - ppp_generic
Fri May 20 09:26:30 2022 daemon.err insmod: module is already loaded - pppox
Fri May 20 09:26:30 2022 daemon.err insmod: module is already loaded - pppoe
Fri May 20 09:26:30 2022 daemon.info pppd[19994]: Plugin rp-pppoe.so loaded.
Fri May 20 09:26:30 2022 daemon.info pppd[19994]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.8
Fri May 20 09:26:31 2022 daemon.notice pppd[19994]: pppd 2.4.8 started by root, uid 0