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protocol error server return message
Posted: Wed Feb 08, 2023 1:27 pm
by yezhouyugon
I installed softether vpn on win10 computer, the server and client Settings are correct, but the connection failed to display "protocol error server return message". Please help solve it. thank you.
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Re: protocol error server return message
Posted: Wed Feb 08, 2023 11:52 pm
by solo
Tell us more & post logs.
Re: Server and client configuration snapshots
Posted: Thu Feb 09, 2023 2:46 am
by yezhouyugon
This is a screenshot of configuring the server and client. Server host is filled in my own computer ip, other configuration is automatic, I did not change. But it just won't connect. My computer is win10 enterprise version system, is a separate network.
Re: protocol error server return message
Posted: Thu Feb 09, 2023 5:59 am
by solo
net stop SEVPNSERVER
nc -l 5555
net start SEVPNSERVER
Code: Select all
SoftEther VPN Server Manager
---------------------------
Protocol error occurred. Error was returned from the destination server.
---------------------------
OK
Which means...
- get rid of whatever else is running on SE's port
- or change connection port
BTW, when you've done it you'll discover that running SE client on the same LAN is a horrible idea.
Re: protocol error server return message
Posted: Thu Feb 09, 2023 1:44 pm
by yezhouyugon
Please check whether my server and client are equipped with que correctly. If the configuration is correct, why the connection fails?
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Re: protocol error server return message
Posted: Thu Feb 09, 2023 3:10 pm
by lucas
在服务器选择界面，选择编辑设置，把截图post出来看看，并且在服务器上执行solo说的指令，并且post出结果来
Re: protocol error server return message
Posted: Thu Feb 09, 2023 8:38 pm
by solo
Translation?
Anyway, change the port from 443 to 992.
Re: protocol error server return message
Posted: Fri Feb 10, 2023 4:41 am
by yezhouyugon
I changed port 443 to 991 as suggested, but it still cannot be connected.
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Still can't connect
Posted: Fri Feb 10, 2023 6:22 am
by yezhouyugon
Port 443 changed to 992 but still cannot be connected.
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I can't connect to port 443 after changing it
Posted: Fri Feb 10, 2023 7:04 am
by yezhouyugon
I can't connect to port 443 after changing it.
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Re: protocol error server return message
Posted: Fri Feb 10, 2023 9:46 am
by solo
Is it now Error Code 12?
"Access has been denied"?
"Akusesu wa kyohi sa remashita"?
Maybe you forgot your password, check this thread
https://www.vpnusers.com/viewtopic.php?f=7&t=5762
The password is correct.
Posted: Sat Feb 11, 2023 9:22 am
by yezhouyugon
The password is correct.It's not the password that's causing the problem.
Re: protocol error server return message
Posted: Thu Feb 16, 2023 5:31 am
by yezhouyugon
Please check the screenshot. I don't know why I can't connect to the server.
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