slow VPN

ramzez · Post by **ramzez** » Sun Jan 25, 2015 5:40 am

I have 120mbit download and 10Mbit upload connection. I have setup VPN with Chaps2 protocol and 128bit encryption, however when i connect over VPN the maximum download speed is about 3Mbit and upload is 1,5 Mbit, i can also see that CPU usage is low.

Is that a bug ?

mafredri · Post by **mafredri** » Sun Jan 25, 2015 6:01 am

Are you talking about using the VPN Client (through Settings) or VPN Server (through App Central app)?

If you are using your NAS as a VPN client, then the problem could the the server you are connecting to, maybe it doesn't have a strong enough CPU or not enough bandwidth.

If you are running the VPN Server on your NAS and connecting to it, then it could be a problem on the clients end.

Generally I have been able to get good speeds on my NAS (AS-6) whilst running it as a VPN Client, ~60 Mbps up/down which is a limitation of the VPN Server.

Regards,
Mathias

ramzez · Post by **ramzez** » Sun Jan 25, 2015 6:19 am

I am talking about VPN Server. I tested it locally on my WiFi. I will try to do a bit more tests, but wanted to check if there are some tips.

mafredri · Post by **mafredri** » Sun Jan 25, 2015 7:12 am

ramzez wrote:I am talking about VPN Server. I tested it locally on my WiFi. I will try to do a bit more tests, but wanted to check if there are some tips.

What are you using to connect to the VPN server, mobile phone, laptop? Also, have you taken into consideration that Wifi might be the limiting factor?

ramzez · Post by **ramzez** » Sun Jan 25, 2015 8:12 am

mafredri wrote:
ramzez wrote:I am talking about VPN Server. I tested it locally on my WiFi. I will try to do a bit more tests, but wanted to check if there are some tips.
What are you using to connect to the VPN server, mobile phone, laptop? Also, have you taken into consideration that Wifi might be the limiting factor?

without vpn i am getting 100mbit download (using speedtest) on my iPhone. with VPN i was getting only 3 Mbit, but looks after i restarted and changed encryption level form Max to MME(40/128) i am now getting 27-30Mbit. which is much better.

So maybe it was just intermittent problem.

mafredri · Post by **mafredri** » Sun Jan 25, 2015 8:25 am

ramzez wrote:
mafredri wrote:
ramzez wrote:I am talking about VPN Server. I tested it locally on my WiFi. I will try to do a bit more tests, but wanted to check if there are some tips.
What are you using to connect to the VPN server, mobile phone, laptop? Also, have you taken into consideration that Wifi might be the limiting factor?

without vpn i am getting 100mbit download (using speedtest) on my iPhone. with VPN i was getting only 3 Mbit, but looks after i restarted and changed encryption level form Max to MME(40/128) i am now getting 27-30Mbit. which is much better.

So maybe it was just intermittent problem.

Yeah, high encryption levels on an iPhone will definitely be problematic. The lower the better the speeds I'd bet.

ramzez · Post by **ramzez** » Fri Jun 12, 2015 6:43 pm

I can't seem to get more than 1.78 download or upload speed from mac while in UK. Anyone can share their setting ?

mafredri · Post by **mafredri** » Fri Jun 12, 2015 8:06 pm

ramzez wrote:I can't seem to get more than 1.78 download or upload speed from mac while in UK. Anyone can share their setting ?

You are probably limited by your internet connection in the UK, or on the other end.

ramzez · Post by **ramzez** » Fri Jun 12, 2015 8:08 pm

speedtest shows 150mb download / 15mb upload.

mafredri · Post by **mafredri** » Fri Jun 12, 2015 8:16 pm

ramzez wrote:speedtest shows 150mb download / 15mb upload.

Sounds about right. 15 Mbps = 1.875 MB/s

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