Linux Endpoint - Update Failed

Hello,

Update function doesn't working with SAV Endpoint for Linux.
Could not decide that this is issue with the connection trough our enterprise proxy service or the root cause the failed authentication to SAV update service.

Update already configured with 'savsetup' to using the proxy (our_proxy_address in the logsand set the Sophos account to authenticate to SAV update service as well.

Can I use the Sophos account directly for this purpose?

Following log entries are visible in the logs.

Regards,
Gabor

<log><category>update.failed</category><level>ERROR</level><domain>savupdate</domain><msg>BAD-PRIMARY-AUTHENTICATION %s</msg><time>1645999763</time><arg>sdds:SOPHOS</arg></log>

2022-02-28 10:09:28,223 DEBUG savupdate.util.Logger: log_entry: [E26245] Cannot locate server for dci.sophosupd.net/.../0c86985b5983caf13a389b476a07fdcb.dat
2022-02-28 10:09:28,223 DEBUG savupdate.util.Logger: log_entry: [I20317] Proxy used was: "noproxy:".
2022-02-28 10:09:28,223 DEBUG savupdate.util.Logger: log_entry: [E75373] Ran out of sophos aliases for this update source
2022-02-28 10:09:28,223 DEBUG savupdate.util.Logger: log_entry: [E19127] Couldn't find DCI for user. URL was: dci.sophosupd.com/.../
2022-02-28 10:09:28,223 DEBUG savupdate.util.Logger: log_entry: [I31036] Proxy used was: "">our_proxy_address:8080/".
2022-02-28 10:09:28,223 DEBUG savupdate.util.Logger: log_entry: [E19127] Couldn't find DCI for user. URL was: dci.sophosupd.net/.../

2022-02-28 10:09:28,225 ERROR savupdate.Updater: BadAuthenticationError
Traceback (most recent call last):
File "Updater.py", line 179, in tryUpdate
File "Updater.py", line 147, in update
File "SddsUpdater.py", line 784, in update
File "SddsUpdater.py", line 934, in __update
File "SDDSResult.py", line 92, in throwOnError
BadHostCredentialsException: BadHostCredentialsException for sdds:SOPHOS
2022-02-28 10:09:28,225 DEBUG savupdate.util.Logger: BAD-PRIMARY-AUTHENTICATION sdds:SOPHOS
2022-02-28 10:09:28,226 DEBUG savupdate.util.Logger: ALL_UPDATE_SOURCES_FAILED