Hey Wulf

Getting this error when I add the plugin.

[uMod] 5:48 PM [Error] Error while compiling DataRateModifier: Compiler disconnected message was null
Compiler failed: Compiler disconnected message was null
Compiler *.*.*.* was closed unexpectedly
Compiler failed: Compiler *.*.*.* was closed unexpectedly
[uMod] 5:48 PM [Info] No previous version to rollback plugin: DataRateModifier

That is not an error with this plugin, that is a compiler error. Please make sure your server is fully updated by running "umod update -P" while the server is shut down.

when I do that it says Valheim is fully updated

umod update -APf

or 

umod update --filter=apps --prerelease --force

[uMod] 6:06 PM [Error] Failed to call hook 'Loaded' on plugin 'DataRateModifier v0.0.2' (NullReferenceException: Object reference not set to an instance of an object)
  at uMod.Plugins.DataRateModifier.Loaded (uMod.Plugins.DataRateModifier+DefaultConfig defaultConfig) [0x0000c] in <e1721f30a6304bac918d5b9a3fdd9c51>:0
  at (wrapper dynamic-method) System.Object.lambda_method(System.Runtime.CompilerServices.Closure,object,object[])
  at uMod.Plugins.HookMethod._Invoke (uMod.Common.IContext target, System.Object[] arguments) [0x0007f] in <f77f0bda0bd04f27a0291f9f6cab69bf>:0
  at uMod.Plugins.HookMethod.Invoke (uMod.Common.IContext target, System.Object[] arguments) [0x000f1] in <f77f0bda0bd04f27a0291f9f6cab69bf>:0
  at uMod.Plugins.HookDispatcher.Dispatch (uMod.Plugins.HookName hookName, System.Object[] args, uMod.Plugins.HookEvent e) [0x001b1] in <f77f0bda0bd04f27a0291f9f6cab69bf>:0
  at uMod.Plugins.Plugin.CallHook (uMod.Plugins.HookName hookName, System.Object[] args, uMod.Plugins.HookEvent e) [0x00060] in <f77f0bda0bd04f27a0291f9f6cab69bf>:0
[uMod] 6:06 PM [Warning] Calling 'Loaded' on 'DataRateModifier v0.0.2' took ~109ms
[uMod] 6:06 PM [Warning] Calling 'Loaded' on 'DataRateModifier v0.0.2' took average ~0ms
[uMod] 6:06 PM [Info] Loaded plugin Data Rate Modifier v0.0.2 by Wulf

Not sure if this meansit works ?

I mean, that error shouldn't be happening, but looks like your original issue is resolved now.

yeah I am having a lot of issues with umod on 2 of my servers, I made a forum post about it hoping someone can help
When i install Umod using powershell it works. but when I run 
umod install Valheim -P

it connects to steam then times out none stop. I suspect this is why it isnt working on my other server where this error comes from. what happened to good old downloading umod.. I dont have this issues with rust... 

you would be my hero if you can figure this one out. I tried disabling my firewall, same issue

https://prnt.sc/107n4id