When switching to different servers VPN errors out upon upgrade

[MadhaviSeelam]

Description

Found while testing #38186. Once connecting to VPN and upgraded from 1.70.x (release) to 1.71.x (Beta) switching to different servers via new server selection panels throws Can't connect to server dialog. This dialog is persistent, and it renders every time when server is switched. Apart from that, can't connect to other websites if VPN is connected. eg. whatismyipaddress.com.

Steps to reproduce

1. Install 1.70.123
2. launch Brave
3. open account.bravesoftware.com with basic auth
4. log into Brave VPN as an existing (above) user ([email protected])
5. click `Refresh Firewall + VPN
6. enabled VPN
7. closed Brave
8. renamed the profile to Brave-Browser-Beta
9. install 1.72.58
10. relaunch Brave
11. click VPN button
12. expand the VPN Panel
13. scroll up and hover over Australia
14. click Connect button

Actual result

Can't connect to server error message is shown

2024-10-03_13h53_43.mp4

Expected result

No error should be shown

Reproduces how often

Easily reproduced

Brave version (brave://version info)

Brave	1.71.104 Chromium: 129.0.6668.89 (Official Build) beta (64-bit)
Revision	3da42496f366e4dc607c58cfdd95ce3f5064c171
OS	Windows 11 Version 23H2 (Build 22631.4249)

Channel information

• release (stable)
• beta
• nightly

Reproducibility

• with Brave Shields disabled
• with Brave Rewards disabled
• in the latest version of Chrome

Miscellaneous information

@simonhong @bsclifton
cc: @mattmcalister @brave/qa-team