No network connection on vu+ solo 2

What Enigma2 distribution do you use ? Which version ?

In every Enigma2 you can also check the connection via MENU (in OpenATV here : Settings -> System -> Network -> Device -> choose a network test). There you'll see where the problem is.

If you can borrow some of the functional WiFi USB dongles for your Enigma2, try to install the driver (via PLUGIN MENU) and connect this USB WiFi dongle. Then you will solve the problem through the standard SSH / Telnet connection and through the command line (Shell).

Vu+ are quite good boxes that also have an RS232 interface. So to diagnose the problem is also possible via RS232. Download PUTTY to your PC, open the "serial session" in PUTTY, connect serial cable between your PC and box. Then you reboot the box and just watch the LOG records in the PUTTY.

Which type of wifi-router is there ? I mean: brand and model + firmware type.

The problem may also be on the side of the router (DHCP service on the router does not assign an IP address to your set top box ... for unknown reason).

Try to set everything in the set top box as manually (IP, MASK, Gateway). As also seagen wrote. Then apply the settings and try to reboot your box.

There should also be options for resetting the network adapter configuration or also restarting the network interface. Try both of them.

But computer networks, for example, are not easy at all from the perspective of programmers. Indeed, you just need a completely primitive thing like disabling auto-negotiation and a cheap wifi-router can then have a problem communicating with this device.

That's why I was also interested in the specific type, model, brand of your wifi-router as well as the firmware version (year, firmware date). Alternative firmware are often better, but there is again a problem to set them properly (dd-wrt, open-wrt, and their various distributions). But let the wifi-router so far :).

I don't really know where the problem might be. Try replacing the entire RJ45 cable between box and router. Try checking the RJ45 connector in the set top box. Try swapping the LAN port in the wifi router - use a different connector in the router to the cable from your set top box. It may happen that one pin in the connector rusts or gets damaged, and it may be a problem. I have no idea where the problem is, because remotely these things are difficult to solve.

I would start to solve the problem with thoughts when these problems started exactly. What preceded this ? Did the boxing network stop working day by day? Or did the network stop working after installing a plug-in ? Or did the network stop working on the recent box restart ? Or what happened exactly ?

What's your cable tester ? It is not enough anyway. Electrical engineering is a little more complicated. For example, the RJ-45 cable tester does not show impedance or possible induction, nor does it indicate the magnitude of the transient electrical resistance in each vein, and does not indicate possible short circuits, nor does it indicate the material from which the cable is made. Usually these are digital testers.

Oh yes, where are the times when the cables were tested with the bulb and the battery pack :). At one end, I put together all 8 veins, and at the other end, I gradually connected all the 1 + 7 wires through the battery and the bulb.

So the problem can be in the cable anyway. The cable may have a broken wire at half length. Although the signal passes, but only 10%. Something similar to a satellite antenna shows ... there are two quantities ... one is signal-to-noise ratio and one is the signal strength received from the satellite in space. Similarly, cables, even if the connection is good, does not mean that data transfer is also good.

Another thing that often happens is the wrong pairing of veins or the swapping of veins in one connector. Very often this happens to people, when manually crimping connectors. I'm not saying you, but that happens often. So check the cable three more times :). The cable testing method is also primitive. It depends on the type of cable tester. However, most of them only check logic 1 and logical 0 throughput and nothing else. Then it may happen that not all network elements can handle a poor quality cable.

In the end ... I recommend to measure each vein separately (all 8 veins) with analogue electric multimeter - you will measure electrical resistance. Move the cable during the measurement. The same thing with another cable and maybe there's a difference.