RailPro > RailPro Specific Help & Discussion
Can’t connect to Ring Servers
G8B4Life:
Well one should probably not try and analyse data past midnight ::) , I missed something last night...
So I believe I have found the problem, what I don't have yet is a why or a solution. I've never seen or heard of this before. Basically what is happening is that somewhere along the network stack the destination IP address is getting changed to the source IP address. In laymans terms this means that when you pressed that pictures button when you were doing that packet capture for me your computer was talking to itself and not with Rings server.
I'm also seeing a lot of of other weird stuff in the capture, such as packet out of sequence errors, MAC addresses that should not have the ID that they have and as already mentioned, the repeated sending of individual packets.
Can you do this for me? Open an elevated command prompt and type in
--- Code: ---ipconfig /all
--- End code ---
and send it to me in a personal message. I'd like to see if those weird MAC address show and if it'll tell me what they are.
So I'm still looking for a why (I may have to join a tech forum to ask!) but a few other questions.
* Is this PC on 24/7 or do you turn it off at all (and not just hibernate etc)? If it's on 24/7 and you haven't turned it off since this thread started it'd be a good idea to turn it off and on and see if the problem persists
* What is the make and model of the Wireless adapter that the PC has?
* Are the drivers for the wireless adapter up to date?
- Tim
KB02:
PM Sent.
G8B4Life:
I haven't forgotten you KB02.
From your PM, yes, rebooting is the first step of IT, especially where Windows is concerned ;)
Unfortunately the info in the ipconfig didn't include any devices with those extra MAC addresses, oh while the make and model of the modem/router combo was good to know it was actually the make and model of the WiFi device on/in the PC I was after. If this is an internal device you can get it's name and model number from somewhere in the network settings.
Another round of questions spurred by looking at the packet capture;
Do you have any other networking device plugged into the PC, such as an access point, a switch, a router etc?
Are you running any virtualisation software, such as VirtualBox or VMWare?
Have you deliberately set the PC's Wifi adapter to be a hotspot or access point?
While I still don't have a why I am formulating a theory that can be tested. From the packet capture only RPA's traffic shows this issue, no other UDP traffic in the capture had the issue however unlike RPA the other UDP traffic doesn't have the same source and destination ports and I wonder if something at the layer 2 interface is getting confused by it?
- Tim
KB02:
--- Quote from: G8B4Life on February 23, 2022, 09:11:51 AM ---...while the make and model of the modem/router combo was good to know it was actually the make and model of the WiFi device on/in the PC I was after.
--- End quote ---
Ah. It is a Realtek RTL8723BE 802.11 bgn Wi-Fi Adapter
--- Quote from: G8B4Life on February 23, 2022, 09:11:51 AM ---Another round of questions spurred by looking at the packet capture;
Do you have any other networking device plugged into the PC, such as an access point, a switch, a router etc?
- No
Are you running any virtualisation software, such as VirtualBox or VMWare?
- No
Have you deliberately set the PC's Wifi adapter to be a hotspot or access point?
- No
--- End quote ---
I just placed an order with Bill for a couple more LM3S modules (really good price!). Looking like I might have to use the old laptop to get them set up in the locos. :)
G8B4Life:
This really is a odd one I must say.
You said in your PM that you had trouble with this WiFi adapter previously, what was the trouble if I may ask?
On the drivers, it's probably worth confirming they are up to date. Microsoft in their update catalog has the latest version as 2023.42.831.2016 (2016/02/10), and RealTek has 2023.56.0502.2017 (2017/06/26) on their website https://www.realtek.com/en/component/zoo/category/rtl8723be-software
I'll PM you with the experiment, probably tomorrow.
- Tim
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