Rigol DHO800 Wifi dongle connects to internet but smb Connection fails. - Page 1
Forum section: electronics / testgear

author: bobert
author_rank: Newbie
timestamp: September 10, 2025, 10:15:11 am
content: Hi, I have been using the Rigol DHO804 happily for the past couple of months and was able to get smb connectivity to my samba share via the ethernet connection at the back of my scope to save waveforms to my PC without having to use a thumbdrive.I recently installed a tplink tl-wn725n wireless dongle on my scope as shown on numerous guides on youtube and was able to get a wifi connection up and running for internet and local network access but when I tried to connect to my samba share a "connection terminated" message pops up on the GUI. Checking the smb logs on my samba server show no connection attempt received on the server.When I plug my ethernet cable back into my scope, i am able to connect to my samba share as before and the samba logs show a connection from my scope IP.Unplugging the ethernet cable and making sure the wifi connection was up by pinging the wlan ip I am unable to connect to the samba share. As soon as I plug my ethernet cable back into my scope, my smb connection succeeds as normal.I am not too familiar with how android or specifically this device connects to the samba share. Using adb shell to the device i am unable to locate a samba client on the device and cannot seem to locate where the smb connection settings are stored.I may be wrong but I suspect the built in samba client is hard-coded to only work via the ethernet interface.Does anyone have a similar experience with this device or have a solution to this problem?Thanks.

author: Whales
author_rank: Super Contributor
timestamp: September 10, 2025, 10:28:03 am
content: Shot in the dark: is your wifi a "meshed" setup? Are you connecting to the SMB host using IP or name?(There is method to my madnessRecently discovered some appliances that don't work on meshed wifi. mDNS doesn't work because IP multicast is intentionally disabled. Not sure if SMB does something similar for name resolution. )

author: bobert
author_rank: Newbie
timestamp: September 10, 2025, 10:39:15 am
content: I am not on a mesh network. I have a single wifi router connected to my network. Both my wireless and wired network are on the same subnet. I am connecting to the samba server using its' IP address like the following. \\x.x.x.x\sharename with a specified username and password which you enter on the scope UI. I have been using these parameters on the ethernet connection for a few months now with no problem. But these settings only seem to work on the wired connection but not on my wifi connection. I have googled this problem but have not come up with a clue about this problem.

author: zelectronicauy
author_rank: Newbie
timestamp: September 10, 2025, 03:16:25 pm
content: You tried it by FTP, I connect to the oscilloscope via WIFI and I have no problem.

author: bobert
author_rank: Newbie
timestamp: September 10, 2025, 11:07:42 pm
content: The DHO800 series of oscilloscopes do not have the option to connect via ftp only smb.

author: zelectronicauy
author_rank: Newbie
timestamp: September 10, 2025, 11:32:59 pm
content: Ummm, I have the DHO814 connected via the Wi-Fi module and that's how I use it.... try it.

author: bobert
author_rank: Newbie
timestamp: September 11, 2025, 05:45:13 am
content: Oh you mean connect to the scope itself via ftp, I thought you meant connect to an ftp server from the scope.Thanks for the tip, I just probed 21 on the scope and it seems to be running an ftp server which i had no idea about.The root directory of the ftp server seems to point to the /data/userdata/ which is local storage on the sdcard.I was hoping to not have to write directly to the sdcard itself though it seems I have no choice unless i can solve the problem of the scope not being able to connect to a samba share via wifi.Oh well. Thanks again zelectronicauy.