Client waiting forever - new container installation on server side

Hi, yes both client and server are on the same subnet.
Server is always up and running.
Client is configured as follows (as found in the log file) :

backup_window_full_file=1-7/0-24
backup_window_full_image=1-7/0-24
backup_window_incr_file=1-7/0-24
backup_window_incr_image=1-7/0-24
computername=LAPTOP-POBFFN7E
exclude_files=C:\ProgramData\Microsoft\Network\Downloader*;C:\WINDOWS\system32\LogFiles\WMI\RtBackup:.:;C:\Users\thier\index.dat;C:\WINDOWS\Minidump*;:\Pagefile.sys;:\System Volume Information\MountPointManagerRemoteDatabase;C:\WINDOWS\netlogon.chg;:\hiberfil.sys;:\System Volume Information\Heat*.;C:\Users\thier\AppData\Local\Temp*;:\System Volume Information*{3808876B-C176-4e48-B7AE-04046E6CC752};:\System Volume Information:.{7cc467ef-6865-4831-853f-2a4817fd1bca}ALT;:\System Volume Information:.{7cc467ef-6865-4831-853f-2a4817fd1bca}DB;C:\ProgramData\Microsoft\Windows\WER*;C:\WINDOWS\softwaredistribution*.;:\System Volume Information\FVE2.{e40ad34d-dae9-4bc7-95bd-b16218c10f72}.:;:\System Volume Information\FVE2.{c9ca54a3-6983-46b7-8684-a7e5e23499e3};:\System Volume Information\FVE2.{24e6f0ae-6a00-4f73-984b-75ce9942852d};:\System Volume Information\FVE2.{9ef82dfa-1239-4a30-83e6-3b3e9b8fed08};:\System Volume Information\FVE2.{aff97bac-a69b-45da-aba1-2cfbce434750}.:;:\System Volume Information\FVE2.{9ef82dfa-1239-4a30-83e6-3b3e9b8fed08}.:;:\System Volume Information\FVE.{e40ad34d-dae9-4bc7-95bd-b16218c10f72}.:;:\System Volume Information\FVE.{c9ca54a3-6983-46b7-8684-a7e5e23499e3};:\System Volume Information\FVE.{9ef82dfa-1239-4a30-83e6-3b3e9b8fed08};C:\Windows\system32\MSDtc\MSDTC.LOG;C:\Users:\AppData\Local\Temp;C:\Users:\AppData\Local\Microsoft\Windows\Temporary Internet Files;C:\Users:\AppData\Local\Google\Chrome\User Data\Default\Cache;C:\Users:\AppData\Local\Google\Chrome\User Data\Default\Media Cache;C:\Users:\AppData\Local\Microsoft\Windows\Explorer\thumbcache*;C:\Users:\AppData\Local\Microsoft\Terminal Server Client\Cache;C:\Users:\AppData\Local\Mozilla\Firefox\Profiles:\cache2;C:\Users:\AppData\Local\Mozilla\Firefox\Profiles:\cache;C:\Windows\Temp;:$$Recycle.Bin;:\System Volume Information;C:\Windows.old;C:$$Windows.~BT;C:\ProgramData\Microsoft\Windows Defender\Scans\mpcache-*
image_letters=C
include_files=C:\Users:\Documents*;C:\Users:\Pictures*;C:\Users:\Music*;C:\Users:\Videos*;C:\Users:\Desktop*
internet_authkey=
internet_compress=true
internet_encrypt=true
internet_full_file_backups=false
internet_image_backups=false
internet_mode_enabled=false
internet_server=
internet_server_port=55415
internet_server_proxy=
internet_speed=-1
local_speed=-1
max_file_full=10
max_file_incr=50
max_image_full=0
max_image_incr=0
min_file_full=2
min_file_incr=30
min_image_full=0
min_image_incr=0
startup_backup_delay=0
update_freq_full=2592000
update_freq_image_full=-5184000
update_freq_image_full_orig=5184000
update_freq_image_incr=-604800
update_freq_incr=86400
client_set_settings=true
client_set_settings_time=1632426083
default_dirs=C:\Users
#pw=KlOcT725f16MMphCVsn9PtsIgoUvHM
2021-09-24 20:48:00: rc=0 hasError=true state=0