CS3 + RealVNC Viewer + TP-Link Nano

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CS3 + RealVNC Viewer + TP-Link Nano

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GRL1849		#1 Posted : 19 December 2025 23:19:36(UTC) Retweet
Joined: 29/11/2022(UTC) Posts: 2 Location: Hovedstaden, Copenhagen		Does anyone have experience with duplicating the screen from their CS3 to a PC, wirelessly? I have downloaded and installed RealVNC Viewer on my old PC (Windows 8.1), and can easily display the CS3's screen on my PC, if I have them connected with a network cable. I would then go a step further and do it wirelessly. This should be possible by taking a TP-Link Nano router, connecting it to the home network via PC, and then removing it from the PC and connecting it to the CS3, so that the CS3 now has its own wifi. The problem is just….that it doesn't work. I have followed all the instructions, restarted PC, router, CS3, everything is installed and set up as it should. But when I try to access CS3 via RealVNC Viewer, I get an error: “Timed out waiting for a response from the computer” I don’t know where to start troubleshooting, because with multiple devices (PC, CS3, Two routers, tplinkwifi), there are hundreds of settings that could be wrong – and I have no experience with internet and routers in particular.


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GRL1849		#2 Posted : 19 December 2025 23:57:04(UTC) Retweet
Joined: 29/11/2022(UTC) Posts: 2 Location: Hovedstaden, Copenhagen		I now tried with another, newer PC. But it can't even get in contact with the CS3 by cable. What the heck am I doing wrong?


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kiwiAlan		#3 Posted : 20 December 2025 00:12:42(UTC) Retweet
Joined: 23/07/2014(UTC) Posts: 8,624 Location: ENGLAND, Didcot		Originally Posted by: GRL1849 I now tried with another, newer PC. But it can't even get in contact with the CS3 by cable. What the heck am I doing wrong? You may need to set a static IP address on the cs3 (along with all the other fields) as the PC may not act as a DHCP server, or the DHCP server hasn't been enabled.

1 user liked this useful post by kiwiAlan		dickinsonj
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rhfil		#4 Posted : 20 December 2025 02:05:16(UTC) Retweet
Joined: 05/09/2014(UTC) Posts: 788 Location: NEW HAMPSHIRE,		When you connect the CS3 to the router you need to do it but not to the yellow ethernet socket. The other socket turns the router into a wifi broadcaster. Then you just enter the ip address of the CS3 into the pc. But that gives you limited features. You can do the same with a smart phone or pad. RealVNC allpws the pc to completely mirror the CS3 but is kind of a pain - to me. Connecting that way is complicated but Marklin Dudes did a video on how which is available on YouTube.

1 user liked this useful post by rhfil		marklinist5999
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Goofy		#5 Posted : 20 December 2025 17:10:19(UTC) Retweet
Joined: 12/08/2006(UTC) Posts: 9,356		Be attention about IP adress...sometimes it shows no numbers in the CS3 system settings by check after IP adress number before to write same number in the URL. In this case you cannot open PC with the CS3. I did had this problem sometimes and yet I do have DHCP automatic set. No problem by use my wifi router and I have fire walls too.
		H0 DCC = Digital Command Control


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rhfil		#6 Posted : 20 December 2025 17:31:46(UTC) Retweet
Joined: 05/09/2014(UTC) Posts: 788 Location: NEW HAMPSHIRE,		One thing to remember before using a wifi router is that the CS3 needs to be aware of the connection in order to use it. So you must always power up the router before the CS3. If the ip address in the CS3 is blank and the router is powered you can simply reset the CS3. Have done that many times.

2 users liked this useful post by rhfil		marklinist5999, dickinsonj
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Goofy		#7 Posted : 21 December 2025 10:17:47(UTC) Retweet
Joined: 12/08/2006(UTC) Posts: 9,356		Originally Posted by: rhfil One thing to remember before using a wifi router is that the CS3 needs to be aware of the connection in order to use it. So you must always power up the router before the CS3. If the ip address in the CS3 is blank and the router is powered you can simply reset the CS3. Have done that many times. Why to reset CS3? Then in case CS3 are fault or wrong system upset by Märklin. Do anybody have heard same problem about with Ecos 50220 too?
		H0 DCC = Digital Command Control


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JohnjeanB		#8 Posted : 21 December 2025 12:47:52(UTC) Retweet
Joined: 04/02/2011(UTC) Posts: 3,688 Location: Paris, France		Hi When having a CS3 - a connection using VNC reader works using the address 192.168.a,b:5900 where a and b are either imposed by the router or manually selected (a=1 and b=15 in my case) and where :5900 is a suffix imposed by VNC (you MUST do it for it to work) - in all cases YOU MUST connect the CS3 to a WiFi router or to you TV / Internet box using a CAT5 or CAT6 cable (straight or cross-over no problem) - better than VNC reader is to use a regular PC with WiFi use your browser (Edge, Chrome, etc) and type in the address field the address you router has selected for you (check on the CS3, the IP field as it will show your address in the field. No app needed, the CS3 talks diorectly to your phone BOTHWAYS - the IP address does not show all the time on your CS3? This is because you MUST start the CS3 as you start the router. Use a multiple outlet strip. - why using the CS3 web is better than VNC Reader? Because VNC is ONLY a duplication of the CS3 screen, WHILE the CS3 web allows a SECOND user access (you do something on the CS3 et ANOTHER THING on the browser of the PC. Another BIG advantage is that you may control REMOTELY your CS3 using a smartphone (iPhone in my case) Just enter on your phone the IP address of your CS3 (192.168.1.15 in my case). - why do I keep repeating 192.168.a.b ? Simply because there are rules (that your router knwos) when assigning an IP address and for a simple personal use it is 192.168 Cheers Jean
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1 user liked this useful post by JohnjeanB		Bent
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rhfil		#9 Posted : 21 December 2025 15:12:40(UTC) Retweet
Joined: 05/09/2014(UTC) Posts: 788 Location: NEW HAMPSHIRE,		If you have a CS3 and it is connected to a wifi router there will be a QR code in the "Syrtems" tab which unfortunately you have to scroll up to find. Your smartphone or pad camera can read it and get you the ip address. You can actually connect to the CS3 by simply clicking on the provided link. Other than the unusual requirement of having to scroll up rather than scrolling down it works great.


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