Hi.

My modem router VR2100 disconnects from the internet very often, is it the internet provider or router's fault?

Previously, I was using a ISP supplied modem / router and there weren't as many disconnects, but they did happen, but not so often.

On a log file it state as:

Original MAC Address I marked as [-MAC Address-]

2021-01-14 00:13:15 [5] System: DSL Link Down
2021-01-14 00:13:18 [5] System: DSL Training
2021-01-14 00:13:19 [6] PPP: Terminating on signal 15
2021-01-14 00:13:19 [6] PPP: Connect time 1745.7 minutes.
2021-01-14 00:13:19 [6] PPP: Sent 4201604557 bytes, received 182197863 bytes.
2021-01-14 00:13:19 [7] PPP: sent [LCP TermReq id=0x2 "User request"]
2021-01-14 00:13:22 [7] PPP: sent [LCP TermReq id=0x3 "User request"]
2021-01-14 00:13:23 [6] PPP: Terminating on signal 15
2021-01-14 00:13:25 [5] PPP: Connection terminated.
2021-01-14 00:13:26 [5] PPP: Release PPP unit success
2021-01-14 00:13:26 [5] PPP: Modem hangup
2021-01-14 00:13:29 [5] System: DSL Link Down
2021-01-14 00:13:32 [5] System: DSL Training
2021-01-14 00:13:54 [7] DHCPD: Recv REQUEST from [-MAC Address-]
2021-01-14 00:13:54 [5] DHCPD: Send ACK to 192.168.1.61
2021-01-14 00:13:54 [5] System: DSL Link Up us/ds 0/79999 kbps Type 64/65B PTM Annex B
2021-01-14 00:13:59 [6] PPP: sent [PADT session is 375]
2021-01-14 00:13:59 [6] PPP: sent [PADI Host-Uniq(0x0000124c)]
2021-01-14 00:14:04 [6] PPP: sent [PADI Host-Uniq(0x0000124c)]
2021-01-14 00:14:14 [6] PPP: sent [PADI Host-Uniq(0x0000124c)]
2021-01-14 00:14:34 [4] PPP: Timeout waiting for PADO packets
2021-01-14 00:14:34 [3] PPP: Unable to complete PPPoE Discovery
2021-01-14 00:14:34 [4] PPP: Connect script failed
2021-01-14 00:14:53 [6] PPP: sent [PADT session is 375]
2021-01-14 00:14:53 [6] PPP: sent [PADI Host-Uniq(0x00001450)]
2021-01-14 00:14:53 [6] PPP: rcvd  [PADO PeerMac([-MAC Address-])]
2021-01-14 00:14:53 [6] PPP: sent [PADR Host-Uniq(0x00001450)]
2021-01-14 00:14:53 [6] PPP: rcvd  [PADS SessionID(0x0374)]
2021-01-14 00:14:53 [7] PPP: MRU we allow peer to request is 1480, MRU we want to request is 1480
2021-01-14 00:14:53 [5] PPP: Connected to [-MAC Address-] via interface nas8.101
2021-01-14 00:14:53 [7] PPP: using channel 2
2021-01-14 00:14:53 [6] PPP: Using interface ppp0
2021-01-14 00:14:53 [5] PPP: Connect: ppp0 <--> nas8.101
2021-01-14 00:14:53 [7] PPP: sent [LCP ConfReq id=0x1 <mru 1480> <magic 0x62256e00>]
2021-01-14 00:14:53 [7] PPP: rcvd [LCP ConfReq id=0x4d <mru 1492> <auth chap MD5> <magic 0x63f30c3b>]
2021-01-14 00:14:53 [7] PPP: sent [LCP ConfAck id=0x4d <mru 1492> <auth chap MD5> <magic 0x63f30c3b>]
2021-01-14 00:14:53 [7] PPP: rcvd [LCP ConfAck id=0x1 <mru 1480> <magic 0x62256e00>]
2021-01-14 00:14:53 [7] PPP: sent [LCP EchoReq id=0x0 magic=0x62256e00]

And next is just with connection successful and authentication successful.

All back to normal.

Is possible to deduce this is ISP fault?

Thanks.