All new Registrations are manually reviewed and approved, so a short delay after registration may occur before your account becomes active.
VPN Help: PPTP on OpenVZ
Hi Guys,
I'm having some problems, and I could do with some advice please.
I'm currently using PPTP on OpenVZ which fires up OK - I get assigned IP address etc, and when I browse IPChicken.com it displays the Server's IP address instead of my residential ISP's one.
On my iPad etc, everything works hunky dory. I can browse the internet as normal through the VPN.
However, on a Windows machine (trying from two different computers) it's very fussy over what sites I can browse. Some will connect fine, others will just keep trying and trying and trying.
I've got ms-dns nameservers set (tried google ones and open-dns), and they get passed over to the windows computer. The computer also gets assigned an IP address.
Any pointers? It's happening on different boxes in different locations with different providers, but it specific to Windows client's connecting to them.
Comments
Try this
iptables -I FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
It could be DNS, this can be tested with nslookup tool to see the query time.
And for windows:
-> Network and Internet -> Network and Sharing Center -> Manage network connections -> select pptp connection -> right click ->Properties -> Networking -> deselect everthing you do not need.
Windows is sending out a ton of broadcasts once it connects to the network, if IPv6, File and Printer Sharing, etc is activated.
Unfortunately, neither made a difference
What are the results if you try to traceroute to a site that you're unable to connect to?
8 hops, and trace complete.
I don't get a connection error in the browser - it just keeps trying and trying and trying (and I may get a white page, or a part page).
If I visit the site not connected via VPN, and then visit it again after when i'm connected via VPN it seems to work fine for a little while.
nslookup is returning the correct results.
Well, you can try to change MTU on your computer
http://my.bergersoft.net/2010/05/13/how-to-change-mtu-size-on-windows-xpvista72008/
Set to 1400, no difference
lower it
http://secure.switchkonnect.com/knowledgebase/34/Frequent-disconnects-Unable-to-browse---PPTP-MTU-Issue---Windows.html
1350 seems to work... I read somewhere that if you have to change MTU, it means something's wrong somewhere? Is that the case?
Are you using ipv4 or ipv6 to connect?
@Rallias - IPV4
Reduced MTU to 1300