Why cant i login to my VPN?

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1

Trying to fire up ProtonVPN on my laptop but all I get is “Incorrect two-factor authentication code”
When I do work on my stationary computer, mobile and friend tested to login.

But not on laptop.

2

Well it says you need the 2FA code. Do you have it ? I’ve had some devices that acted weird when they were setup with different timezones than the app with the 2FA.

3

Sync your pc clock again. I’ve seen this a 1000 times. If your PC clock is off like 20 seconds which sometimes they are it will throw off the codes. Sync the system. Then wait like 30 secs and try again.

4

you may be missing a step, like registering it on your laptop; especially is they have different O/S

5

My codes have been generated using my yubikeys.

I have 2 yubikeys and never had problem before, really strange.

6

Ye I guess it has todo something with the ssl certificates or some other certificate

7

Problem is solved already :slight_smile: the time on laptop was off. Thanks thu

8

Is your laptop clock / timezone set to auto ? If its working for your friend and pc, its very probably a problem originating from your laptop.

9

No lol. It has everything to do with the 2FA code generation since it’s based on the current time.

10

Very messy everything, did remove everything and added everything again.

Now it’s all working, if I would have been out on work, I would have big problems :slight_smile:

Thanks

11

Ye it’s affirmative, works on stationary computer, not laptop.

Need to find the setting (not something I’ve changed) but the time is off by 2 mins

12

Ah okey, so when pc time is off by a min or more the 2fa code is generated for that time.
Nifty.

Thanks for clarification

13

If you right click on the clock in the bottom bar then select ‘adjust date and time’ , can you select the option to set time automatically ? Or force sync it if everything looks good

14

Software 2FA codes usually have a life of around a minute and they get a new code every 30 seconds.

So a code generated at 12:00:00 will work up until 12:01:00 and a code generated at 12:00:30 will work up until 12:01:30. If your clock is out by a minute or more then you’ll never be using the right code.

These codes are generated on the device itself and time is obviously a main player in the generated 2fa code, so your time on this device must be accurate.

Overly simplified but you get the idea.