[Valheim] Can't join or start server after first try

[sosnax1]

Hi, i have been struggling with my server for quite a while. Have been succesfully lanuched it on windows, but can't run it on linux. Have tried multiple guides, they are more or less the same. Tried to run it without linuxGSM, with it. Tried rebooting, reinstalling, even waited a month or two for update, and updated, then reinstalled again both steamCMD and LinuxGSM by puryfing all, and removing leftover catalogs. Even tried swapping steamclient.so as suggested in other thread, still not working... Tried changing port once to 8585, doesn't help.
Password is more than 5, tried exactly 5, doesn't help. After each installation server seems to run, but i can't connect, steam "servers" also does not see it. When i restart it, apk crashes, and debug show this:

`
Valheim Debuging

Distro: Ubuntu 20.04.3 LTS
Arch: x86_64
Kernel: 5.4.0-88-generic
Hostname: r710ded
tmux: tmux 3.0a
Avg Load: 0.83, 0.69, 0.76
Free Memory: 52GB
Free Disk: 5.9T
glibc required: 2.15
Game Server IP: 0.0.0.0:2456
Internet IP: ...:2456
Server password: 12345pA
Start parameters:
./valheim_server.x86_64 -name 'Preset' -password 12345pA -port 2456 -world Dedi cated -public 1 -savedir '/home/vhserver/.config/unity3d/IronGate/Valheim'

Use for identifying server issues only!
Press CTRL+c to drop out of debug mode.
Warning! If vhserver is already running it will be stopped.

Continue? [Y/n] Y
[ INFO ] Debuging vhserver: Stopping any running servers
[ INFO ] Stopping vhserver: Preset is already stopped
[ OK ] Debuging vhserver: Starting debug
Set current directory to /home/vhserver/serverfiles
Found path: /home/vhserver/serverfiles/valheim_server.x86_64
Mono path[0] = '/home/vhserver/serverfiles/valheim_server_Data/Managed'
Mono config path = '/home/vhserver/serverfiles/valheim_server_Data/MonoBleedingE dge/etc'
Preloaded 'libsteam_api.so'
Initialize engine version: 2019.4.24f1 (5da6f0345e82)
[Subsystems] Discovering subsystems at path /home/vhserver/serverfiles/valheim_s erver_Data/UnitySubsystems
Forcing GfxDevice: Null
GfxDevice: creating device client; threaded=0
NullGfxDevice:
Version: NULL 1.0 [1.0]
Renderer: Null Device
Vendor: Unity Technologies
Begin MonoManager ReloadAssembly

• Completed reload, in 0.080 seconds
  UnloadTime: 0.773277 ms
  10/10/2021 11:52:33: Starting to load scene:start

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

Couldn't create a Convex Mesh from source mesh "default" within the maximum poly gons limit (256). The partial hull will be used. Consider simplifying your mesh.
(Filename: Line: 91)

Couldn't create a Convex Mesh from source mesh "default" within the maximum poly gons limit (256). The partial hull will be used. Consider simplifying your mesh.
(Filename: Line: 91)

HDR Render Texture not supported, disabling HDR on reflection probe.
(Filename: Line: 277)

HDR Render Texture not supported, disabling HDR on reflection probe.
(Filename: Line: 277)

Unloading 6 Unused Serialized files (Serialized files now loaded: 0)
UnloadTime: 7.283242 ms
Only custom filters can be played. Please add a custom filter or an audioclip to the audiosource (Amb_MainMenu).
(Filename: Line: 516)

HDR Render Texture not supported, disabling HDR on reflection probe.
(Filename: Line: 277)

10/10/2021 11:52:38: Valheim version:0.203.11

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:38: Render threading mode:SingleThreaded

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:38: Get create world Dedicated

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:38: Using steam_appid.txt

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:38: Using steam APPID:892970

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

[S_API] SteamAPI_Init(): Loaded local 'steamclient.so' OK.
CAppInfoCacheReadFromDiskThread took 2 milliseconds to initialize
RecordSteamInterfaceCreation (PID 31419): SteamGameServer013 /
RecordSteamInterfaceCreation (PID 31419): SteamUtils009 /
CreateBoundSocket: ::bind couldn't find an open port between 2457 and 2457
[Steamworks.NET] GameServer.Init() failed.
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:38: Steam is not initialized

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:38: Missing audio clip in music respawn

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:38: Builder started

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:39: Loaded localization CSV:localization language:English

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:39: Loaded localization CSV:localization_extra language:English

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

10/10/2021 11:52:39: UI Group status changed Menu = True

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

Unloading 17 unused Assets to reduce memory usage. Loaded Objects now: 96517.
Total: 84.256325 ms (FindLiveObjects: 5.955956 ms CreateObjectMapping: 13.641863 ms MarkObjects: 64.269162 ms DeleteObjects: 0.388534 ms)

Setting up 12 worker threads for Enlighten.
Thread -> id: 7f1c02793700 -> priority: 1
Thread -> id: 7f1c01f92700 -> priority: 1
Thread -> id: 7f1c01791700 -> priority: 1
Thread -> id: 7f1c00f90700 -> priority: 1
Thread -> id: 7f1b67fff700 -> priority: 1
Thread -> id: 7f1b677fe700 -> priority: 1
Thread -> id: 7f1b66ffd700 -> priority: 1
Thread -> id: 7f1b667fc700 -> priority: 1
Thread -> id: 7f1b65ffb700 -> priority: 1
Thread -> id: 7f1b657fa700 -> priority: 1
Thread -> id: 7f1b64ff9700 -> priority: 1
Thread -> id: 7f1b5ffff700 -> priority: 1
10/10/2021 11:52:39: Steam manager on destroy

(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

src/tier1/fileio.cpp (5131) : Assertion Failed: m_vecRegisteredWriters.Count() = = 0
src/tier1/fileio.cpp (5131) : Assertion Failed: m_vecRegisteredWriters.Count() = = 0
Bad thread localsrc/tier1/fileio.cpp (5191) : Assertion Failed: CFileWriterThrea d already exited
src/tier1/fileio.cpp (5191) : Assertion Failed: CFileWriterThread already exited
Bad thread localBad thread localsrc/tier1/fileio.cpp (5191) : Assertion Failed: CFileWriterThread already exited
src/tier1/fileio.cpp (5191) : Assertion Failed: CFileWriterThread already exited
Bad thread local
[ OK ] Debuging vhserver: Stopping debug
`
I'm kinda new to linux, this is my first machine, if i culd wuld have try reinstalling ubuntu... But i can't since thre is too much effor putted to other still running services on this machine and if possible i wuld rather no do format...

[sosnax1]

So... After all of this mess. I kinda found partcially solution, i have to change port evry time apk reboots... I have used unturned server default ports and it worked on debug, then ctl x (on debug) and only 20715 is freed but 20716 is not.