Upload speed is very slow and causing the overall experience slow for webpage loading.

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AdGuard VPN Browser Extension version

2.2.27

Browser version

131.0.2 (64-bit)

OS version

Fedora 40

Issue Details

Steps to reproduce:

1. Install the extension on Firefox and log into the account
2. Connect to the fastest location
3. Visit https://www.speedtest.net/ and do the speed test

Expected Behavior

Upload speed is similar to the download speed.

Actual Behavior

Upload speed is 1/3 of download speed.

Screenshots

Without VPN

With VPN

Additional Information

No response

[windwak3r]

@uncharted-user, hello! What servers are you choosing in the extension?

@uncharted-user, hello! What servers are you choosing in the extension?

I selected Singapore for this test. However, I tried Philippines, Cambodia, turkey and came up with same results.

[windwak3r]

@uncharted-user
Does the problem reproduce if you change the server on https://www.speedtest.net/ ?
I've tested other VPN extensions such as NordVPN and it showed similar results on Randburg, and I'm not sure it's VPN's fault.

Does the problem reproduce if you change the server on https://www.speedtest.net/ ?

Yes similar results.

I've tested other VPN extensions such as NordVPN

I am also using Surfshark and almost gets close to the original speed for both upload and download.

I'm not sure it's VPN's fault.

Some loss is expected, but I am getting nearly 70-90% speed loss for upload test.

[windwak3r]

@uncharted-user Please go to Settings > DNS server and try Google DNS or Cloudflare DNS server for example. Still no change?

Screenshot 1

Should I change AdGuard DNS to google or something else? All of my devices are currently using AdGuard DNS.

[windwak3r]

@uncharted-user We just want to understand the root of the problem. You can also try choose other AdGuard DNS server from the list.

@uncharted-user We just want to understand the root of the problem. You can also try choose other AdGuard DNS server from the list.

With google DNS,

Without VPN,

I tried with other DNS, but similar results. I can see upload speed between 1 Mbps and 22 Mbps.