VMD-L Mailing List

From: Xiaohu Hu (xiaohu.hu_at_mssm.edu)
Date: Mon Oct 02 2017 - 14:58:03 CDT

Sorry, the repreating error messages should be this:

On the server:

vrpn: Connection request received from xx.xx.xx.xxx: 51469
vrpn_Endpoint::connect_tcp_to: Could not connect to machine port 51469
Winsock error: 10061
vrpn_Endpoint::setup_new_connection:  Can't write cookie.
vrpn_Connection_IP::handle_connection():  Can't set up new connection

and on the VMD console:

from Phantom: No response from server for >= 10 second

On 10/02/2017 02:30 PM, Xiaohu Hu wrote:
> Dear all,
>
> I am seeing a strange network error when I tried to use VRPN to
> connect a sensible phantom haptic device to another computer running
> the software. So I have this following setup:
>
> - A windows 7 machine running VRPN server 7.33, the haptic device is
> connected to the windows machine and is properly configured. I used
> the vrpn_print_devices.exe command to verfied it.
>
> - A second linux computer running ubuntu 16.04 has the software VMD
> installed on it which should connect to the VRPN server on the win7
> machine. The goal is to use the haptic device as a input device for
> the IMD that will be ran on the linux machine.
>
> Everything seems fine until when I try to connect to the VRPN server
> from the linux machine. On the server screen, I see the following
> repeating error message:
>
> vrpn: Connection request received from xx.xx.xx.xxx:
> https://urldefense.proofpoint.com/v2/url?u=http-3A__127.0.1.1&d=DwIDaQ&c=shNJtf5dKgNcPZ6Yh64b-A&r=SHx_YnYMsBQdPqUNPQ_CGtLPvCDYJr0vd32NmgHNJaI&m=7ENtYXMunETrrqLHllF6gWgCW4SdjZ5SXTQ1zp04j-A&s=HqzZxYyEQS_mWHHjepXn8Xz1VGDEAcLbldpxRtmA1wk&e=
> 51469
> vrpn_Endpoint::connect_tcp_to: Could not connect to machine
> https://urldefense.proofpoint.com/v2/url?u=http-3A__127.0.1.1&d=DwIDaQ&c=shNJtf5dKgNcPZ6Yh64b-A&r=SHx_YnYMsBQdPqUNPQ_CGtLPvCDYJr0vd32NmgHNJaI&m=7ENtYXMunETrrqLHllF6gWgCW4SdjZ5SXTQ1zp04j-A&s=HqzZxYyEQS_mWHHjepXn8Xz1VGDEAcLbldpxRtmA1wk&e=
> port 51469
> Winsock error: 10061
> vrpn_Endpoint::setup_new_connection:  Can't write cookie.
> vrpn_Connection_IP::handle_connection():  Can't set up new connection!
>
> meanwhile on the linux machine I see this repeating error message on
> the vmd console:
>
> from Phantom: No response from server for >= 10 seconds
>
> It seems that the vmd on the linux machine is trying to make a request
> to connect to the VRPN server, which is received by the VRPN server,
> but when the server tries to talk back to the vmd, it gets denied for
> some reason (ergo the winsock 10061 error?). I have turned off the
> firewalls on both machines and the same thing still happens.
>
> I am wondering whether it is a VRPN issue or a network issue, both
> computers are connected to the same network, they should be on the
> same subnet. I am wondering if anyone else has seen similar error? Any
> help here is appreciated, and much thanks in advance!
>
> Best,
>
> Xiaohu
> 

-- 
Xiaohu Hu
Postdoctoral Fellow
Department of Pharmacological Sciences
Icahn School of Medicine at Mount Sinai
Email: xiaohu.hu_at_mssm.edu