RV340 L2TP connection dropped with second client

[TkcCedric]

Hello

Please help

i'm trying to setup the RV340 for as an L2tp server.  i followed the directions in the attached pdf i found in another post and it works well, i can connect and stay connected for 2hr+(i haven't tested longer).  but as soon as a second client connects the first client is disconnected by the router after 1 or 2 minutes.  I've tried this with the same user login on both clients and also with different user logins.  i need upto 15 users connected at once.   any ideas

i have tried changing the mru packet size on one of the clients (not in this log) and go rid of the mru warning, but still gets dropped by the next client connection, I'm not sure what to try next i'm to still new to VPN setup.  all clients tested to this point are windows 7 (64 bit/Pro)

Hardware

RV340-K9 V03

Firmware 1.0.02.16

log 

2019-02-15T09:20:25-08:00 <notice>pppd: Modem hangup
2019-02-15T09:20:25-08:00 <notice>pppd: Connection terminated.
2019-02-15T09:20:19-08:00 <warning>pppd: Overriding mru 1500 to mtu value 1400
2019-02-15T09:20:19-08:00 <warning>pppd: Overriding mtu 1500 to 1400
2019-02-15T09:20:19-08:00 <warning>dnsmasq-dhcp: Last message 'no address range ava' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:20:19-08:00 <notice>xl2tpd: Maximum retries exceeded for tunnel 60807. Closing.
2019-02-15T09:20:19-08:00 <error>xl2tpd: Last message 'Error from CMM, erro' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:19:50-08:00 <error>xl2tpd: Error from CMM, error = `32003'
2019-02-15T09:19:49-08:00 <warning>dnsmasq-dhcp: no address range available for DHCP request via ppp1
2019-02-15T09:19:49-08:00 <notice>pppd: remote IP address 192.168.1.102
2019-02-15T09:19:49-08:00 <notice>pppd: local IP address 192.168.1.100
2019-02-15T09:19:49-08:00 <error>pppd: Cannot determine ethernet address for proxy ARP
2019-02-15T09:19:49-08:00 <warning>pppd: Unsupported protocol 'IPv6 Control Protocol' (0x8057) received
2019-02-15T09:19:49-08:00 <notice>pppd: PAP peer authentication succeeded for VPNUser2
2019-02-15T09:19:49-08:00 <warning>pppd: Last message 'Warning - secret fil' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:19:47-08:00 <warning>pppd: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
2019-02-15T09:19:47-08:00 <warning>pppd: Overriding mru 1500 to mtu value 1400
2019-02-15T09:19:47-08:00 <warning>pppd: Overriding mtu 1500 to 1400
2019-02-15T09:19:47-08:00 <notice>pppd: Connect: ppp1 <-->
2019-02-15T09:19:47-08:00 <notice>pppd: pppd 2.4.5 started by root, uid 0
2019-02-15T09:19:47-08:00 <notice>xl2tpd: Call established with xxx.xxx.xxx.xxx, Local: 61705, Remote: 1, Serial: 0
2019-02-15T09:19:47-08:00 <warning>xl2tpd: L2TP tunnels used:1.
2019-02-15T09:19:47-08:00 <notice>xl2tpd: Connection established to xxx.xxx.xxx.xxx, 1701. Local: 56514, Remote: 18 (ref=0/0). LNS session is 'default'
2019-02-15T09:18:04-08:00 <notice>pppd: Modem hangup
2019-02-15T09:18:04-08:00 <notice>pppd: Connection terminated.
2019-02-15T09:17:58-08:00 <warning>pppd: Overriding mru 1500 to mtu value 1400
2019-02-15T09:17:58-08:00 <warning>pppd: Overriding mtu 1500 to 1400
2019-02-15T09:17:58-08:00 <warning>dnsmasq-dhcp: Last message 'no address range ava' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:17:58-08:00 <notice>xl2tpd: Maximum retries exceeded for tunnel 21213. Closing.
2019-02-15T09:17:16-08:00 <error>xl2tpd: Error from CMM, error = `32003'
2019-02-15T09:17:16-08:00 <warning>dnsmasq-dhcp: no address range available for DHCP request via ppp0
2019-02-15T09:17:16-08:00 <notice>pppd: remote IP address 192.168.1.101
2019-02-15T09:17:16-08:00 <notice>pppd: local IP address 192.168.1.100
2019-02-15T09:17:16-08:00 <error>pppd: Cannot determine ethernet address for proxy ARP
2019-02-15T09:17:16-08:00 <notice>pppd: PAP peer authentication succeeded for VPNUser1
2019-02-15T09:17:16-08:00 <warning>pppd: Last message 'Warning - secret fil' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:17:14-08:00 <warning>pppd: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
2019-02-15T09:17:14-08:00 <warning>pppd: Overriding mru 1500 to mtu value 1400
2019-02-15T09:17:14-08:00 <warning>pppd: Overriding mtu 1500 to 1400
2019-02-15T09:17:14-08:00 <notice>pppd: Connect: ppp0 <-->
2019-02-15T09:17:14-08:00 <notice>pppd: pppd 2.4.5 started by root, uid 0
2019-02-15T09:17:14-08:00 <notice>xl2tpd: Call established with xxx.xxx.xxx.xxx, Local: 10605, Remote: 1, Serial: 0
2019-02-15T09:17:14-08:00 <warning>xl2tpd: L2TP tunnels used:1.
2019-02-15T09:17:14-08:00 <notice>xl2tpd: Connection established to xxx.xxx.xxx.xxx, 1701. Local: 60807, Remote: 12 (ref=0/0). LNS session is 'default'
2019-02-15T09:17:06-08:00 <error>userauth: Last message 'Localdb:user:Spare1 ' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:16:24-08:00 <notice>pppd: Modem hangup
2019-02-15T09:16:24-08:00 <notice>pppd: Connection terminated.
2019-02-15T09:16:18-08:00 <warning>pppd: Overriding mru 1500 to mtu value 1400
2019-02-15T09:16:18-08:00 <warning>pppd: Overriding mtu 1500 to 1400
2019-02-15T09:16:18-08:00 <warning>dnsmasq-dhcp: Last message 'no address range ava' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:16:18-08:00 <notice>xl2tpd: Maximum retries exceeded for tunnel 53905. Closing.
2019-02-15T09:16:18-08:00 <error>xl2tpd: Last message 'Error from CMM, erro' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:15:55-08:00 <error>xl2tpd: Error from CMM, error = `32003'
2019-02-15T09:15:55-08:00 <warning>dnsmasq-dhcp: no address range available for DHCP request via ppp1
2019-02-15T09:15:55-08:00 <notice>pppd: remote IP address 192.168.1.102
2019-02-15T09:15:55-08:00 <notice>pppd: local IP address 192.168.1.100
2019-02-15T09:15:55-08:00 <error>pppd: Cannot determine ethernet address for proxy ARP
2019-02-15T09:15:55-08:00 <warning>pppd: Unsupported protocol 'IPv6 Control Protocol' (0x8057) received
2019-02-15T09:15:55-08:00 <notice>pppd: PAP peer authentication succeeded for VPNUser2
2019-02-15T09:15:55-08:00 <warning>pppd: Last message 'Warning - secret fil' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:15:53-08:00 <warning>pppd: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
2019-02-15T09:15:53-08:00 <warning>pppd: Overriding mru 1500 to mtu value 1400
2019-02-15T09:15:53-08:00 <warning>pppd: Overriding mtu 1500 to 1400
2019-02-15T09:15:53-08:00 <notice>pppd: Connect: ppp1 <-->
2019-02-15T09:15:53-08:00 <notice>pppd: pppd 2.4.5 started by root, uid 0
2019-02-15T09:15:53-08:00 <notice>xl2tpd: Call established with xxx.xxx.xxx.xxx, Local: 45405, Remote: 1, Serial: 0
2019-02-15T09:15:53-08:00 <warning>xl2tpd: L2TP tunnels used:1.
2019-02-15T09:15:53-08:00 <notice>xl2tpd: Connection established to xxx.xxx.xxx.xxx, 1701. Local: 21213, Remote: 17 (ref=0/0). LNS session is 'default'
2019-02-15T09:15:18-08:00 <warning>dnsmasq-dhcp: no address range available for DHCP request via ppp0
2019-02-15T09:15:15-08:00 <notice>pppd: remote IP address 192.168.1.101
2019-02-15T09:15:15-08:00 <notice>pppd: local IP address 192.168.1.100
2019-02-15T09:15:15-08:00 <error>pppd: Cannot determine ethernet address for proxy ARP
2019-02-15T09:15:15-08:00 <notice>pppd: PAP peer authentication succeeded for VPNUser1
2019-02-15T09:15:15-08:00 <warning>pppd: Last message 'Warning - secret fil' repeated 1 times, supressed by syslog-ng on routerName
2019-02-15T09:15:13-08:00 <warning>pppd: Warning - secret file /etc/ppp/pap-secrets has world and/or group access
2019-02-15T09:15:13-08:00 <warning>pppd: Overriding mru 1500 to mtu value 1400
2019-02-15T09:15:13-08:00 <warning>pppd: Overriding mtu 1500 to 1400
2019-02-15T09:15:13-08:00 <notice>pppd: Connect: ppp0 <-->
2019-02-15T09:15:13-08:00 <notice>pppd: pppd 2.4.5 started by root, uid 0
2019-02-15T09:15:13-08:00 <notice>xl2tpd: Call established with xxx.xxx.xxx.xxx, Local: 16089, Remote: 1, Serial: 0
2019-02-15T09:15:13-08:00 <warning>xl2tpd: L2TP tunnels used:0.
2019-02-15T09:15:13-08:00 <notice>xl2tpd: Connection established to xxx.xxx.xxx.xxx, 1701. Local: 53905, Remote: 11 (ref=0/0). LNS session is 'default'