Having a strange problem when a specific user tries to connect via windows vpn client to my astaro using PPTP
2006:07:10-10:29:06 (none) pptpd[6508]: CTRL: Client 207.65.30.70 control connection finished
2006:07:10-10:29:09 (none) pptpd[6510]: CTRL: Client 207.65.30.70 control connection started
2006:07:10-10:29:09 (none) pptpd[6510]: CTRL: Starting call (launching pppd, opening GRE)
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Plugin /usr/sbin/radius.so loaded.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: RADIUS plugin initialized.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Plugin /usr/sbin/radattr.so loaded.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: RADATTR plugin initialized.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Plugin /usr/sbin/radius.so loaded.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: RADIUS plugin initialized.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Plugin /usr/sbin/radattr.so loaded.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: RADATTR plugin initialized.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: pppd 2.4.3 started by (unknown), uid 0
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Starting negotiation on /dev/ttyp0
2006:07:10-10:29:09 (none) pptpd[6510]: GRE: Bad checksum from pppd.
2006:07:10-10:29:09 (none) pptpd[6510]: GRE: read(fd=5,buffer=8053ca0,len=8260) from network failed: status = -1 error = Protocol not available
2006:07:10-10:29:09 (none) pptpd[6510]: CTRL: GRE read or PTY write failed (gre,pty)=(5,4)
2006:07:10-10:29:09 (none) pptpd[6510]: CTRL: Reaping child PPP[6511]
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Modem hangup
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Connection terminated.
2006:07:10-10:29:09 (none) pppd-pptp[6511]: Exit.
Multiple other users work fine.
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