VNC timeout?

[michaeldessen]

I have a couple students who are telling me that the VNC connection consistently times out at exactly 1 hr 59 minutes and then prevents them from logging back in, even after a reboot. I haven't tried reproducing this but do you have any idea why that might happen? Thanks!

Michael

[kdoren]

I haven't seen that or heard it reported. They can't get back in even after a reboot? Does that mean it is bricked?

Any special settings changes?

If you have Jamulus set to auto-connect, there is a default 2-hr shutdown timer which will shut down the Pi (need to power cycle to restart). This is to protect against someone leaving their connection up for days. You can change or disable the timeout in the jamulus_start.conf file.

I do see VNC disconnect (i.e. after switching apps, I've never timed it) and go to the "noVNC" screen, but you can always hit "connect" and get back in.

[michaeldessen]

Thanks, Kevin! They said rebotting then trying urlrelay again didn't get them to the VNC screen but I thought this was really odd and their reports were limited in detail, so it could be something they're doing. I'm not aware of settings changes but I'll look into it and see what I can find. They were using Sonobus. I'll try updating them to the new jambox version soon to see if that helps.

[kdoren]

Quite coincidentally I just ran into a problem that reminds me of this. I'm at my sister's house and brought my build Pi with me, and plugged it into her router. I was able to SSH into it, but but box kept changing IP addresses every few hours (I didn't time it). Each time I had to find the new IP address and log back in.

The problem in this case appears to be buggy router firmware. Her router (NetGear Orbi RBR50) was running 18-month old firmware (5 versions back) that was very buggy, even the UI had bugs. I updated her router to current firmware and DHCP appears to work correctly now - my Pi's IP address has been stable since I did that.

[michaeldessen]

Thanks, Kevin! That sounds like it might be the problem, but unfortunately it may be hard for me to get them to solve since I prefer not to get involved too much with students' home network configurations... But it's great to know about this and I can at least suggest to them that they look into it.

[CAguayo]

This really makes me wonder if they are rebooting the desktop instead of power-cycling the RPi! I have a couple of folks in my group that have a hard time navigating instructions related to the RPi's remote desktop, vs the host computer that's running the browser and Zoom. It takes a great deal of precise and patient questioning before I can find how to help them, sometimes we're delaying the music game and I give up. Carlos

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On Wed, Mar 17, 2021 at 6:10 PM Michael Dessen ***@***.***> wrote: Thanks, Kevin! They said rebotting then trying urlrelay again didn't get them to the VNC screen but I thought this was really odd and their reports were limited in detail, so it could be something they're doing. I'm not aware of settings changes but I'll look into it and see what I can find. They were using Sonobus. I'll try updating them to the new jambox version soon to see if that helps. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#63 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABKJTE3ZMC3KEHG5OYMGG4DTEFHJLANCNFSM4ZLR3QBQ> .

[michaeldessen]

Thanks, Carlos. Agreed - it is hard to know from their reports alone what is happening.

[yoyomatt4cello]

Hi, Kevin! I would like to set-up the jambox to auto connect to our server, but to a specific room (port) on the server. I have specific port numbers assigned as "rooms." For example, 45.76.63.21:22125 would connect the user to Room 2 on our server. Entering the server address with the corresponding port number on the pi jambox is not working. Is something like this possible? Thanks in advance for your help, *Matthew Keating* CCSM Executive Director 909-624-3012 www.claremontmusic.org

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On Wed, Mar 17, 2021 at 5:50 PM Kevin Doren ***@***.***> wrote: I haven't seen that or heard it reported. They can't get back in even after a reboot? Does that mean it is bricked? Any special settings changes? If you have Jamulus set to auto-connect, there is a default 2-hr shutdown timer which will shut down the Pi (need to power cycle to restart). This is to protect against someone leaving their connection up for days. You can change or disable the timeout in the jamulus_start.conf file. I do see VNC disconnect (i.e. after switching apps, I've never timed it) and go to the "noVNC" screen, but you can always hit "connect" and get back in. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#63 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ATCSWEJ7FJMAVTKNUHLCZTTTEFE5XANCNFSM4ZLR3QBQ> .

[kdoren]

@yoyomatt4cello Yes that will work. Client side is not a problem, Jamulus allows it in connect dialog, and jambox 1.3.0b1 and later allow ip:port in JAMULUS_SERVER auto-connect setting if you are using that.

Server side requires running totally separate processes for each room. If running as a systemd service, you would have separate unit files, i.e. jamulus-server.service, jamulus-server1.service, etc. And if they point (like jambox) to a config file, you would point them (in .service file) to separate config files.

So multiple server processes each listening to a different port will work. FYI if you had a server with multiple IP addresses (i.e in a data center), Jamulus can't handle that, it listens to all interfaces.

If you are trying to run multiple Jamulus servers on a Raspberry Pi, please report back how much load it can handle before it gets into trouble.

[yoyomatt4cello]

Hi again, Kevin! I feel like this is a dumb question, but I am having difficulty using the urlrelay.com/go feature to connect to a jambox when there is already another one in use on the same network. I tried navigating to the self-assigned IP address, but the IP seems to change frequently. What am I missing? Also - if there is a place for me to donate in support of this project, please let me know. I appreciate your willingness to answer my questions. Many thanks in advance, MK *Matthew Keating* CCSM Executive Director 909-624-3012 www.claremontmusic.org On Wed, Mar 17, 2021 at 9:42 PM Matthew Keating ***@***.***> wrote:

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Hi, Kevin! I would like to set-up the jambox to auto connect to our server, but to a specific room (port) on the server. I have specific port numbers assigned as "rooms." For example, 45.76.63.21:22125 would connect the user to Room 2 on our server. Entering the server address with the corresponding port number on the pi jambox is not working. Is something like this possible? Thanks in advance for your help, *Matthew Keating* CCSM Executive Director 909-624-3012 www.claremontmusic.org On Wed, Mar 17, 2021 at 5:50 PM Kevin Doren ***@***.***> wrote: > I haven't seen that or heard it reported. They can't get back in even > after a reboot? Does that mean it is bricked? > > Any special settings changes? > > If you have Jamulus set to auto-connect, there is a default 2-hr shutdown > timer which will shut down the Pi (need to power cycle to restart). This is > to protect against someone leaving their connection up for days. You can > change or disable the timeout in the jamulus_start.conf file. > > I do see VNC disconnect (i.e. after switching apps, I've never timed it) > and go to the "noVNC" screen, but you can always hit "connect" and get back > in. > > — > You are receiving this because you are subscribed to this thread. > Reply to this email directly, view it on GitHub > <#63 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/ATCSWEJ7FJMAVTKNUHLCZTTTEFE5XANCNFSM4ZLR3QBQ> > . >

[kdoren]

@yoyomatt4cello urlrelay is covered in the README.md file on the landing page for this repo. I haven't set up a donate mechanism yet, thanks for asking.

If you only have 1 jambox on your local network, urlrelay.com will magically redirect your web browser to it.

If you have >1 jambox on same local network, you need to give them each a different NODE_ID (this is set in /etc/urlrelay/urlrelay.con, and can be set right after flashing the SD card, under /boot/payload/ directory).

Then you can access via: urlrelay.com/go?

https://github.com/kdoren/jambox-pi-gen#customizable-settings
https://github.com/kdoren/jambox-pi-gen#urlrelay