Rigol MSO5074 can ping but not connect - Page 1
Forum section: electronics / testgear

author: 65roadster
author_rank: Contributor
timestamp: December 23, 2024, 08:21:31 pm
content: The title says it all really. I can ping my scope from my Windows machine but cannot connect to it via Ultra Sigma or Web Control. I came across this as I am trying to do the MSO5000 all options hack. I've not gotten to the point in the hack where I actually change anything in the scope, I'm just at the point of it being backed up and trying it connect using the python script.Since this looks like a more general problem with the scope, not a problem with the hack script, I thought a separate thread was appropriate.Firmware 1.3.3.0 (just upgraded today using USB stick, firmware from Rigol's site)Subnet is 255.255.255.0IP address is 192.168.1.10Windows IP is 192.168.1.17Ping response in 1msWeb connect (putting 192.168.1.10 into my browser URL) just says unable to connectUltra Sigma reports "Insufficient location information or the device or resource is not present in the system" when I have it test the IP address.Any help is appreciated.

author: thm_w
author_rank: Super Contributor
timestamp: December 23, 2024, 11:08:34 pm
content: This is DHCP or static IP you've set?If its static IP, what is the DNS?Try DHCP if you haven't already.

author: 65roadster
author_rank: Contributor
timestamp: December 24, 2024, 05:11:55 am
content: Thanks for the response, this is using DHCP, DNS is 192.168.1.1, the IP address of my cable modem / DHCP server.I tried static IP, turned off auto IP config and set the DNS to 1.1.1.1 to see if that had any effect but it did not.

author: 65roadster
author_rank: Contributor
timestamp: December 24, 2024, 05:48:47 am
content: When rebooting my scope I noticed that my windows PC was still successfully pinging the IP address my scope displayed in it's configuration. There is something amiss there.I connected my windows PC and the scope to an isolated router and assigned fixed IP addresses and was able to complete the "upgrade" process.Now as to why the scope thinks it's connected to the network with an IP address that is already assigned to something else, when the scope is configured for DHCP, Auto IP, no static IP... I'll go troubleshoot that.

author: NE666
author_rank: Frequent Contributor
timestamp: December 24, 2024, 05:12:13 pm
content: Quote from: 65roadster on December 24, 2024, 05:48:47 amSeems very likely that you've an IP address conflict on your original network segment. Either your DHCP is at fault, or you've some statically assigned addresses somewhere that conflict.

author: ariDev1
author_rank: Newbie
timestamp: July 17, 2025, 08:21:19 pm
content: If you are on FW: 00.01.03.03.00 you can use MSO5000_liveview.i did a post on that ->https://www.eevblog.com/forum/testgear/mso5000-liveview-open-source-oscilloscope-monitoring/msg5980739/#msg5980739or you can check which SCPI commands are working on your oszi with another tool which you can find at:https://github.com/ariDev1/MSO5000_scpi_doomregards!

author: Sabbatti
author_rank: Newbie
timestamp: August 19, 2025, 08:26:46 pm
content: If you still have got problems to access your scope, download portscan fromhttps://the-sz.com/products/portscan/index.phpEnsure that your network and the Windows PC is configured as a "Private network" and not as a "Public network". You can use google.com to get the powershell commands to change this. On Windows 11 you can use the GUI.Start portscan and scan your entire network. Usually at home you should have a network :24 / netmask 255.255.255.0 which will give you 252 IP host addresses plus network and broadcast address.In your example portscan should find your scope with IP 192.168.1.10Now enter start IP 192.168.1.10 and leave end IP blank. Select to scan all ports.You now should see all open IP ports of your scope. If you do not see open ports, check your Windows network settings. Probably you may disable your Windows firewall for a test.If you see an open port 80 you should be able to openhttp://192.168.1.10in your browser.Entire network scanScan scope IP for all open portsOpen IP in browser

author: macboy
author_rank: Super Contributor
timestamp: August 20, 2025, 05:26:23 am
content: In my experience duplicate IP addresses are usually due to the router (DHCP server) getting rebooted while other devices remain up. Those other devices often keep their IP addresses, but the DHCP server considers the IP to be free and available, and may assign it to something else. The fix is to power cycle all network switches that devices are connected to, causing the devices to lose their Ethernet link. When the link comes back, they will obtain a new IP from DHCP and all will be well.

author: ZhuraYuk
author_rank: Regular Contributor
timestamp: August 20, 2025, 04:51:32 pm
content: Static IPs are not routed at all by router, you need to add routing rules by yourself. Use DHCP for your Rgol. Also what port it is running its web interface? 443? 80 ? Or some custom one?

author: Sabbatti
author_rank: Newbie
timestamp: August 21, 2025, 09:03:55 am
content: Quote from: ZhuraYuk on August 20, 2025, 04:51:32 pmThis is not correct. If a static IP is configured with a host IP within the network range together with the correct network mask and gateway it will be routed by the router.But you need to exclude this ip from the DHCP range on the router web interface so that there will not bee two devices with the same ip.In general for a home network it´s better to configure all devices with DHCP. Probably you want to set a DHCP reservation on the router for specifig device MAC addresses so that these devices get allways the same DHCP IP address.