Verify all machines are using NTLM. If one using lanman and the other NTLM then that would cause the issue.

Also check this article: http://jasonhu.com/2019/05/30/connecting-syno … indows-clients/

It happened to me some months ago (Synology DS214e). It seems related to NTLM version, being NTLMv1 deprecated and NTLMv2... well, I don't really know what happened to NTLMv2 but I had to change some settings. NTLMv3 is fine.

Windows 98 can't use NTLMv3 passwords, and I'm not sure that it can do NTLMv2 at all. If you only need to upload and download files (i.e.: making backups) and don't need to run things or use it as a shared folder, I guess your best option is using FTP.

Not sure if there are any WebDAV clients for Win9x, but if there are, you can even create a shared folder using the FTP protocol.

Thanks guys, I figured it out.

Setting the registry key to 3 instead of 1 works. It can connect once again.
The key is LmCompatibility by the way, not LmCompatibilityLevel.
Thanks!

Justin1091 wrote on 2019-12-31, 13:15:

Thanks guys, I figured it out. […]
Show full quote

Thanks guys, I figured it out.

Setting the registry key to 3 instead of 1 works. It can connect once again.
The key is LmCompatibility by the way, not LmCompatibilityLevel.
Thanks!

Can you explain the steps to do this exactly, I've had a Diskstation 214SE for several years and I've never been able to get 98SE to connect to it. I would greatly appreciate it as I've looked everywhere and can't find the info.

Shagittarius wrote on 2019-12-31, 17:21:

Justin1091 wrote on 2019-12-31, 13:15:

Thanks guys, I figured it out. […]
Show full quote

Thanks guys, I figured it out.

Setting the registry key to 3 instead of 1 works. It can connect once again.
The key is LmCompatibility by the way, not LmCompatibilityLevel.
Thanks!

Can you explain the steps to do this exactly, I've had a Diskstation 214SE for several years and I've never been able to get 98SE to connect to it. I would greatly appreciate it as I've looked everywhere and can't find the info.

Sure thing!

First, in the DiskStation make sure minimum SMB level is at 1. It's at control panel -> File Services -> SMB -> Advanced.
Then note which account on the NAS you will use to connect to the shares. That account will need to have at least read access to the shared folders of course.

Then on the Windows 98 PC, install Dsclient. There are many different versions but I never found the newest one, nor one in my language. So I just grab an English version of dsclient. Just google it, you'll find it. Install it.

Some dsclient installers first extract it to a specified folder, you then need to go to that folder and click the setup file again. Reboot.
After rebooting go to Start -> Run -> Regedit.exe and navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa and create a new DWORD entry with the name LMCompatibility (not LmCompatibilityLevel as you often read online), put in a 3 as value.
Reboot.

After installing DSclient and the registry key, go to Control panel -> Network settings. Make sure you have Client for Microsoft Networks in the list there. Under primary Network logon, select Client for Microsoft Networks. You don't need to select that you'll be sharing files on the Windows 98 PC. You should also go the Identification tab and enter the same workgroup name the NAS is in, makes it easier to find it.

It will ask you for the Windows 98 CD, insert it. When it asks you to replace recent files on your PC click NO for each file. Clicking yes will mess things up because you will replace new files with the old cdrom versions.
Now reboot.

When logging in, Windows will ask you for a network password. Here is where you will fill in your NAS credentials exactly how they are on the NAS. You need to do this every time you log on the PC.
Click start -> Run and type \\yourNASnameorIP\folder It should NOT prompt you for a password, because you already supplied that at Windows logon. If you want you can also map the shares to drives in Explorer.

derSammler wrote on 2019-12-31, 09:37:

Not sure if there are any WebDAV clients for Win9x, but if there are, you can even create a shared folder using the FTP protocol.

Win98 supports WebDAV natively, or you can look into a client like Novell Netdrive.

Thanks for the help, this is great but I ran into an issue first attempt.

Things of note:
I used the Win9x DSclient from Win2k SP4 CD, which seemed to install fine.
I do not have an HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa key. I added this key myself and the DWORD you specified, then I set my machine to use the MS Windows Networks login as primary. When I rebooted the sound/video drivers gave me all kinds of error messages, not sure what caused this really. I also couldn't set the video to the correct bit depth / resolution anymore.

I'm going to try to do some of these things independently and see if I can figure out what caused the issue, then I'll try again.

Thanks for laying this out for me though!

EDIT: IT seems to be simply changing the primary windows logon that's causing this, let me work on fixing that first. This must be something with being unable to find files once the primary login has been switched I'm guessing.

I've attached the DSclient I use for 9x and NT4. I've tested on Windows 95 as well and it works fine.

REGEDIT4

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\control\LSA]
"LMCompatibility"=dword:00000003