# Paraview Remote connection failed
**URL:** https://discourse.paraview.org/t/paraview-remote-connection-failed/7594
**Category:** ParaView Support
**Created:** [July 12, 2021, 7:48am UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594 "2021-07-12T07:48:41Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@qianyan\_tan](https://discourse.paraview.org/u/qianyan_tan)
#### Post date: [July 12, 2021, 7:48am UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594/1 "2021-07-12T07:48:42Z")
Hello, everyone! when I try the paraview remote connection between cluster(server) and win10(client GUI). it shows client connected, but one second later it gives the error: Segmentation fault(core dumped). I donot know what is wrong with it? If anyone could give me suggestions, I appreciate. The steps in detail are as following:
**Step 1:**
**`$ ssh XX@hawk.hww.hlrs.de`**
(then I could get the login node:hawk-login04)
**step2:**
_ **from local shell:** _
`$ ssh -L 11111:hawk-login04:22222 XX@hawk.hww.hlrs.de`
_(here I could connect successfully)_
**step 3:**
_ **from cluster:** _
```auto
hawk-login04$ module load paraview/server/(version)
hawk-login04$ pvserver --server-port=22222
Waiting for client...
Connection URL: cs://hawk-login04:22222
Accepting connection(s): hawk-login04:22222
```
**step4:**
_ **from local paraview client:** _
-\>File-\>connection-\>add Server-\> Server Type:Client/Server → Host:localhost → Port:11111 save.
At the time I click connect, from the cluster it shows:
```auto
Waiting for client...
Connection URL: cs://hawk-login04:22222
Accepting connection(s): hawk-login04:22222
Client connected.
Loguru caught a signal: SIGSEGV
Stack trace:
10 0x40173e pvserver() [0x40173e]
9 0x7fd159edb7b3 __libc_start_main + 243
8 0x401659 pvserver() [0x401659]
7 0x7fd157a3dc21 vtkTCPNetworkAccessManager::ProcessEventsInternal(unsigned long, bool) + 609
6 0x7fd156976d99 vtkMultiProcessController::ProcessRMIs(int, int) + 729
5 0x7fd156976580 vtkMultiProcessController::ProcessRMI(int, void*, int, int) + 272
4 0x7fd15823972d vtkPVSessionServer::OnClientServerMessageRMI(void*, int) + 1101
3 0x7fd1582392aa vtkPVSessionServer::GatherInformationInternal(unsigned int, char const*, unsigned int, vtkMultiProcessStream&) + 714
2 0x7fd1579ebf8f vtkPVDataInformation::CopyParametersFromStream(vtkMultiProcessStream&) + 111
1 0x7fd15697c130 vtkMultiProcessStream::operator>>(std::string&) + 224
0 0x7fd159eef880 /lib64/libc.so.6(+0x37880) [0x7fd159eef880]
( 20.065s) [pvserver] :0 FATL| Signal: SIGSEGV
Segmentation fault (core dumped)
```
---
### Author:  [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)
#### Post date: [July 12, 2021, 12:52pm UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594/2 "2021-07-12T12:52:45Z")
Are both exactly the same version? From the location of the segfault, seems to me that you’re using `master` at different heads . `vtkPVDataInformation` was dramtically changed in `master` recently. Since a release hasn’t been cut yet, the version number does not reflect that change and hence the handshake doesn’t catch it. What versions are you using here?
---
### Author:  [@qianyan\_tan](https://discourse.paraview.org/u/qianyan_tan)
#### Post date: [July 12, 2021, 3:32pm UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594/3 "2021-07-12T15:32:50Z")
I use the paraview 5.9.1. Both I use the same version.
---
### Author:  [@qianyan\_tan](https://discourse.paraview.org/u/qianyan_tan)
#### Post date: [July 12, 2021, 3:35pm UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594/4 "2021-07-12T15:35:38Z")
I tried also the reverse connection but I could not connect successfully. do you have some suggestions about it?
---
### Author:  [@utkarsh.ayachit](https://discourse.paraview.org/u/utkarsh.ayachit)
#### Post date: [July 12, 2021, 4:25pm UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594/5 "2021-07-12T16:25:42Z")
sigh, not sure what’s going on. If you have debug build of the `pvserver`, running in a debugger and then seeing why the segfault is happening may provide some insight. Nothing obvious comes to mind here. People are using 5.9.1 in client-server mode, so something about this build/run-time enviroment is at play here.
---
### Author:  [@qianyan\_tan](https://discourse.paraview.org/u/qianyan_tan)
#### Post date: [July 12, 2021, 5:10pm UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594/6 "2021-07-12T17:10:17Z")
Thanks for your suggestions. I am sorry that I am new with the paraview and I donot know how to debug build of the pvserver. The pvserver in the cluster I think maybe I have no permission to debug it.
---
### Author:  [@swornom](https://discourse.paraview.org/u/swornom)
#### Post date: [July 19, 2021, 9:09am UTC](https://discourse.paraview.org/t/paraview-remote-connection-failed/7594/7 "2021-07-19T09:09:33Z")
Your ram may be too small on your local machine