Slow speeds with AirVPN on Windows 2008 R2

[ganga 0]

I'm having speed issue when using AirVPN on a Windows 2008 R2, with 4 CPUs and 8GB RAM.

When using for example utorrent without OpenVPN enabled i get about 10MB/s.



But with vpn enabled i get about 2/2.5MB.



Same happend downloading through browser, and testins speeds for example with Speedtest.

Without vpn


With vpn.



I'm currently using AirVPN through OpenVPN 2.5.6 version with the default openvpn files generated from the Config Generator area, although i also tried chaning the received/send buffer wihout getting any speed improvement. Also tried with the default TAP adapter and just in case also reverting it back to the old 9.9.1 as i remember in the past was one trick to get better speeds.

I tried with different airvpn servers US/Canada/Swiss, all with the same results.

This is running as a VM with 4 cpus and 8GB RAM. On the utorrent pictures you can see the resource monitor is not reaching high load so it doesn't seem to be that. Anyone knows if there is any specific problem with Windows 2008 R2 that could cause this huge speed downgranding?

Thanks in advance



 

[OpenSourcerer 1441]

Can you try with different ports and protocols and report back, please?

[ganga 0]

6 hours ago, giganerd said:

Can you try with different ports and protocols and report back, please?

Hello, thanks for your answer.

I forgot to mention it before but already tried both with UDP and TCP configurations from the config generators, and with different servers, same behaviour.  Also tried disabling ipv6 from both the network adapter and tap adapter.

Not sure about the ports, i understand it can eventually affect utorrent, but as you can see it's not only affecting that but also normal browsing, download from borwsers and speed tests.

I think it should be some kind of switch i miss or something wrong with the TAP adapter, as all traffic is instantanely affected when vpn is on.

Thanks!

[OpenSourcerer 1441]

2 hours ago, ganga said:

I think it should be some kind of switch i miss or something wrong with the TAP adapter, as all traffic is instantanely affected when vpn is on.

Does it happen with other devices in your network as well?

[ganga 0]

15 hours ago, giganerd said:

Does it happen with other devices in your network as well?

Well i don't have other device in the same network that can i test with airvpn.

Something i forgot to remember, this is running as a guest virtual machine through KVM with virtio enabled to speed up networking. Maybe is there a problem with this?