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

[uncharted-user]

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• [X] I checked the knowledge base and found no answer
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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]

@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.

[uncharted-user]

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


[uncharted-user]

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]

@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.