I am on 3.2.7.40868 (Linux Mint) and so far no issues
Ubuntu 20.10 Insync 3.3.4.40916
“your authentication token is invalid” : I have to login +/- 3 times a day, I don’t know why
Hi! Can you send your logs.db and out.txt files? These are in ~/.config/Insync. Please email them to support@insynchq.com 
Similar problem here.
“Your authentication token is invalid…”
Started some days ago and the number of messages per day is growing.
I then log in, it works for a while and after some hours the message is back.
Every help highly appreciated.
TIA
Peter
@Peter_William_LeMans Hello! So sorry for the trouble you’re facing.
Could you please send the following to support@insynchq.com:
- logs.db
- out.txt
Here’s how to find those logs: https://help.insynchq.com/en/articles/1834816-locating-the-log-files
Please let me know as well if you tried logging in via normal login (like adding a new account) or via the alternative login method.
I’m facing the very same problem here with Google Drive.
Very annoying.
Hi @Carlos_A_Rocha_Rodri! Just in case you have not, please do follow the instructions below to send your log files.
Email the following to support@insynchq.com after Insync is closed:
- logs.db
- out.txt
These two files can be found by following the instructions here: https://help.insynchq.com/en/articles/1834816-locating-the-log-files. Please also include the link to this Forums post so I can trace the original report accordingly.
Thank you!
I hope I’m not threadjacking here. I’ve run into this issue on Linux (Insync v3.9.4.60020, Xubuntu/Ubuntu Studio 24.04). About every day or so I get the error. Here are some of the recent logs.db entries that appear to be relevant
The query (logs.db):
select
id,
threadName,
strftime(
'%Y-%m-%d %H:%M:%S',
floor(created),
'unixepoch'
) as created,
module,
funcname,
message
from logs
where module = 'oauth2client'
order by created desc
limit 20;
The resultset:
25019010|CoreLoopThread|2026-06-27 18:57:27|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25019005|CoreLoopThread|2026-06-27 18:57:26|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
25014983|CoreLoopThread|2026-06-27 18:47:38|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25014984|CoreLoopThread|2026-06-27 18:47:38|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25014963|CoreLoopThread|2026-06-27 18:47:28|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
25014964|CoreLoopThread|2026-06-27 18:47:28|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
25013519|CoreLoopThread|2026-06-27 18:41:22|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25013459|CoreLoopThread|2026-06-27 18:41:11|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
25013485|CoreLoopThread|2026-06-27 18:41:11|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25013435|CoreLoopThread|2026-06-27 18:41:04|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
25013334|CoreLoopThread|2026-06-27 18:40:27|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25013265|CoreLoopThread|2026-06-27 18:40:20|oauth2client|__refresher|Getting new access token for '117407822864845224656'...
25013129|CoreLoopThread|2026-06-27 18:39:24|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25013097|CoreLoopThread|2026-06-27 18:39:18|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
25012867|CoreLoopThread|2026-06-27 18:38:11|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25012742|CoreLoopThread|2026-06-27 18:37:58|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
25009730|CoreLoopThread|2026-06-27 18:22:20|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25009721|CoreLoopThread|2026-06-27 18:22:15|oauth2client|__refresher|Getting new access token for '117407822864845224656'...
25009686|CoreLoopThread|2026-06-27 18:21:49|oauth2client|__refresher|New access token retrieved which will expire in 3599 seconds.
25009674|CoreLoopThread|2026-06-27 18:21:44|oauth2client|__refresher|Getting new access token for '112289377314703927093'...
It looks like Google is issuing tokens that last at maximum 24 hours. I don’t see anything in the settings for either account that would ask for something this short. Is this a Google restriction, perhaps?
Hi @Henry_Gernhardt, not threadjacking at all
Very sorry for the trouble you’re experiencing!
We would like to request for your logs for further investigation. Kindly note that logs may contain sensitive information like file names and metadata, but we never have access to its contents. It will only be used for debugging purposes.
If you agree to this, please do send your logs to support@insynchq.com after quitting Insync and include the following:
- Forums link
- logs.db
- out.txt
You can find your logs by following this guide. If these are too big for an attachment, feel free to upload the files in the cloud and send us a shared link so we can download these.
I look forward to hearing from you so we can resolve your inquiry. ![]()
Mia—
I have sent the relevant information. I have to deal with Google authentication APIs as well, so I’d love to hear if there are any techy details that’ll help me better interface with them.
Thanks and God bless,
Henry