Ap route não conecta na vpn (pptp) modo ISP

estou com um APROUTE tentando se conectar pela PPTP em modo ISP, mais nao conecta.

alguem pode me dizer o que será o problema...?

veja os logs com

/etc/ppp/pptpd-options
require-mppe-128


#esse é de uma conecção normal no PC. OK
Sep 25 09:17:18 debian pppd[29769]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Sep 25 09:17:18 debian pppd[29769]: pppd 2.4.4 started by root, uid 0
Sep 25 09:17:18 debian pppd[29769]: Using interface ppp0
Sep 25 09:17:18 debian pppd[29769]: Connect: ppp0 <--> /dev/pts/1
Sep 25 09:17:21 debian pppd[29769]: MPPE 128-bit stateless compression enabled
Sep 25 09:17:23 debian pppd[29769]: local IP address 192.168.1.254
Sep 25 09:17:23 debian pppd[29769]: remote IP address 192.168.50.2

#essa de da conecção do aproute
Sep 25 09:25:57 debian pppd[30154]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Sep 25 09:25:57 debian pppd[30154]: pppd 2.4.4 started by root, uid 0
Sep 25 09:25:57 debian pppd[30154]: Using interface ppp1
Sep 25 09:25:57 debian pppd[30154]: Connect: ppp1 <--> /dev/pts/2
Sep 25 09:25:57 debian pppd[30154]: Connection terminated.
Sep 25 09:25:57 debian pppd[30154]: Connect time 0.0 minutes.
Sep 25 09:25:57 debian pppd[30154]: Sent 18 bytes, received 36 bytes.
Sep 25 09:25:57 debian pppd[30154]: Exit.

#agora sem o require-mppe-128 no /etc/ppp/pptpd-options

#esse é de uma conecção normal no PC (não conecta)
Sep 25 09:50:40 debian pppd[31474]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Sep 25 09:50:40 debian pppd[31474]: pppd 2.4.4 started by root, uid 0
Sep 25 09:50:40 debian pppd[31474]: Using interface ppp1
Sep 25 09:50:40 debian pppd[31474]: Connect: ppp1 <--> /dev/pts/2
Sep 25 09:50:40 debian pppd[31474]: LCP terminated by peer (fGnM-^\^@<M-Mt^@^@^BM-f)
Sep 25 09:50:40 debian pppd[31474]: Modem hangup
Sep 25 09:50:40 debian pppd[31474]: Connection terminated.
Sep 25 09:50:40 debian pppd[31474]: Connect time 0.0 minutes.
Sep 25 09:50:40 debian pppd[31474]: Sent 52 bytes, received 66 bytes.
Sep 25 09:50:40 debian pppd[31474]: Exit.


#essa e da conecção do aproute
Sep 25 09:48:37 debian pppd[31327]: Plugin /usr/lib/pptpd/pptpd-logwtmp.so loaded.
Sep 25 09:48:37 debian pppd[31327]: pppd 2.4.4 started by root, uid 0
Sep 25 09:48:37 debian pppd[31327]: Using interface ppp0
Sep 25 09:48:37 debian pppd[31327]: Connect: ppp0 <--> /dev/pts/1
Sep 25 09:48:37 debian pppd[31327]: local IP address 192.168.1.254
Sep 25 09:48:37 debian pppd[31327]: remote IP address 192.168.50.2

Aqui no log mostra conectado o APROUTE. No Aproute mostra conectado tambem, mais não recebe ip.