Connecting to SFTP very unreliably

[ahstro]

I have a local server, running SFTP. I am able to reliably access it from my computer (e.g. using FileZilla or gvfs-enabled file managers), but for some reason, accessing it through nxmp is incredibly unreliable. Most of the time, clicking the network share just throws "Error Connecting" immediately, as it does when wifi is disabled. However, once in a blue moon, it loads for a bit and then connects and lets me access my files. This seems to work fine, playing files is smooth with no connection issues so far, so the issue seems to only be in initializing the connection, but I'll try to play some videos and see if they ever crash/disconnect mid-stream to make sure.

[proconsule]

i am using libssh2 for supporting sftp, i tried it only on linux machine with openssh and it works well with no issue at all. what server daemon are you using? (so i can setup a testing env)

[ahstro]

Looks like I'm using OpenSSH too, but all those oldstable unsettle me. Using Yunohost on the server, so less knowledge of its ecosystem than laptop I usually use.

me@box:~$ apt list --installed | grep ssh

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

libssh-gcrypt-4/oldstable,oldstable-security,now 0.9.8-0+deb11u1 amd64 [installed,automatic]
libssh2-1/oldstable,now 1.9.0-2 amd64 [installed,automatic]
openssh-client/oldstable,oldstable-security,now 1:8.4p1-5+deb11u3 amd64 [installed]
openssh-server/oldstable,oldstable-security,now 1:8.4p1-5+deb11u3 amd64 [installed,automatic]
openssh-sftp-server/oldstable,oldstable-security,now 1:8.4p1-5+deb11u3 amd64 [installed,automatic]
task-ssh-server/oldstable,now 3.68+deb11u1 all [installed]