Network speed reduced even after disconnecting from VPN

[xtrem]

I use VPN on my Mac Pro 6.1 Catalina.

Of course I don't get 100% when I'm connected to VPN, I get maybe 80-90% from my 500/500 connection.

But recently after the computer been running a couple of hours I get maybe 50%, and the strange thing is that I get the same speed even after I'm disconnected from the VPN.
A reboot of the computer solves everything and brings the speed back to 100%.

I've tried with both Wireguard and OpenVPN (both latest versions), same problem.

No problem on my Windows machine with uptime of +20 days and same VPN account.

Wired connection (dual) CAT7 cables and Gigabit switches (netgear). Been working great for the last couple of months.

 

[bogdanw]

I don’t see any difference in speed over VPN in Catalina 10.15.4 compared to Mojave 10.14.6. I use Tunnelblick 3.8.2 with OpenVPN configuration files using UDP.
Some connections problems in Catalina might to be related to the DNS servers used, try different ones.
https://forums.macrumors.com/threads/safari-issues.2205333/

 

[xtrem]

It is not a problem between Catalina and Mojave. Everything worked had worked great in Catalina for months.
It is not a DNS-problem.

 

[bogdanw]

It is not a problem between Catalina and Mojave. Everything worked had worked great in Catalina for months.
It is not a DNS-problem.

So the problem started after 10.15.4? I am interested because I use VPN all the time and I'm looking for ways of improving the connection speed. I currently get at best around 17%.

 

[jeyf]

dump your speed test app for another.

 

[Kenny99]

Look at this: https://www.howtogeek.com/197268/ho...nnel-for-your-router-on-any-operating-system/

it helped me to increase my speed.

KenK

 

[jeyf]

... after the computer been running a couple of hours I get maybe 50%, and the strange thing is that I get the same speed even after I'm disconnected from the VPN.
A reboot of solves everything and brings the speed back to 100%...

almost sounds if your internet provider is throttling your account?

 

[xtrem]

dump your speed test app for another.

using terminal and curl
[automerge]1585812918[/automerge]

almost sounds if your internet provider is throttling your account?

No problem on my Windows machine with uptime of +20 days and same VPN account."

That is at the same time on the same network and connection, so no.
[automerge]1585813073[/automerge]

Look at this: https://www.howtogeek.com/197268/ho...nnel-for-your-router-on-any-operating-system/

it helped me to increase my speed.

KenK

Wired connection (dual) CAT7 cables and Gigabit switches (netgear).

No, please read the original post before answering.

 

[jeyf]

provider is throttling than

 

[xtrem]

So the problem started after 10.15.4? I am interested because I use VPN all the time and I'm looking for ways of improving the connection speed. I currently get at best around 17%.

I can't be sure that is it connected to 10.15.4, I'd say probably not, but could be. I'd try to install a older version of Catalina and test. But it would be a clean install so isn't 100% method since none of my other software will be installed.
[automerge]1585813512[/automerge]

provider is throttling than

how come the windows machine (seeding torrents) has no problem. same network, same vpn-provider

 

[jeyf]

wtf

 

[bogdanw]

I can't be sure that is it connected to 10.15.4, I'd say probably not, but could be. I'd try to install a older version of Catalina and test. But it would be a clean install so isn't 100% method since none of my other software will be installed.
how come the windows machine (seeding torrents) has no problem. same network, same vpn-provider

Is there a difference in MTU size settings in Catalina and Windows?

 

[xtrem]

Is there a difference in MTU size settings in Catalina and Windows?

No. Both are 1500

 

[xtrem]

Tested with a clean install of 10.15.0 and 10.15.4. (just a couple of hours uptime). Works great, same speed all through with OpenVPN.
So some settings or 3rd party software on my current install seems to cause this

 

[jeyf]

you are looking a LOT of bandwidth
did the clean installation permanently fix your issue

if the problemo returns do you see any additional system process's hanging around?