К Keenetic Ultra II с прошивкой v2.06(AAUX.8)B0 не удается сделать VPN коннект с Windows компьютера.
Без шифрования подключиться получается.
При подключении с шифрованием выдается ошибка 742 на клиенте.
Лог с роутера:
Aug 01 16:31:13pptpd[32641]CTRL: Client 178.22.55.29 control connection started
Aug 01 16:31:13ndmkernel: Fast VPN ctrl: setup for src 178.22.55.29
Aug 01 16:31:13pptpd[32641]CTRL: Starting call (launching pppd, opening GRE)
Aug 01 16:31:13pptp[32642]Plugin pptp.so loaded.
Aug 01 16:31:13pptp[32642]PPTP plugin version 0.8.3 compiled against pppd 2.4.4-4
Aug 01 16:31:13pptp[32642]pppd 2.4.4-4 started by root, uid 0
Aug 01 16:31:13pptp[32642]Using interface vpn1
Aug 01 16:31:13pptp[32642]Connect: vpn1 <--> pptp (178.22.55.29)
Aug 01 16:31:13pptp[32642]MPPE required but cannot negotiate MPPE key length
Aug 01 16:31:13pptp[32642]Connection terminated.
Aug 01 16:31:13pptpd[32641]CTRL: Reaping child PPP[32642]
Aug 01 16:31:13pptpd[32641]CTRL: Client pppd TERM sending
Aug 01 16:31:13pptpd[32641]CTRL: Client pppd finish wait
Aug 01 16:31:13ndmkernel: Fast VPN ctrl: release for src 178.22.55.29
Aug 01 16:31:13pptp[32642]Exit.
Aug 01 16:31:13pptpd[32641]CTRL: Client 178.22.55.29 control connection finished
Если на клиенте сделать сильное шифрование, то лог с роутера::
Aug 01 16:39:01ndmkernel: Fast VPN ctrl: setup for src 178.22.55.29
Aug 01 16:39:01pptpd[2379]CTRL: Starting call (launching pppd, opening GRE)
Aug 01 16:39:01pptp[2382]Plugin pptp.so loaded.
Aug 01 16:39:01pptp[2382]PPTP plugin version 0.8.3 compiled against pppd 2.4.4-4
Aug 01 16:39:01pptp[2382]pppd 2.4.4-4 started by root, uid 0
Aug 01 16:39:01pptp[2382]Using interface vpn1
Aug 01 16:39:01pptp[2382]Connect: vpn1 <--> pptp (178.22.55.29)
Aug 01 16:39:01pptp[2382]MPPE required but cannot negotiate MPPE key length
Aug 01 16:39:01pptp[2382]Connection terminated.
Aug 01 16:39:01pptpd[2379]CTRL: Reaping child PPP[2382]
Aug 01 16:39:01pptpd[2379]CTRL: Client pppd TERM sending
Aug 01 16:39:01pptpd[2379]CTRL: Client pppd finish wait
Aug 01 16:39:01syslogVpnServer::Manager: system failed [0xcffd05ba].
Aug 01 16:39:01ndmkernel: Fast VPN ctrl: release for src 178.22.55.29
Aug 01 16:39:01pptp[2382]Exit.
Aug 01 16:39:01pptpd[2379]CTRL: Client 178.22.55.29 control connection finished
Использовал статьи https://zyxel.ru/kb/4185/ и https://zyxel.ru/kb/3984/