Universal Media Server | Forum

The server and the renderers must be on the same local network. It sounds like your wireless and wired networks aren't the same (have different IP subnets) and that UMS is still on the "wireless" network.

It doesn't seem like the network setup is the problem. I see this in your log, which indicates that UMS can "see" the TV:
I also see a lot of errors in the attempted communication. I can't know for sure, but it seems like the TV is rejecting UMS. I also see this in the manual: No server that I know of is DLNA certified, because to become that you'd have to pay a lot of money to those that does the certification. I don't know if this is just something they write or if it's actually true. With Sony nothing would surprise me. That said, if it worked using Wifi it doesn't really make any sense.

If you have both the wired interface and the wifi interface configured on the TV and both are on the same local network, there could be some confusion. You should try to disable the Wifi in the TV's configuration so that you are sure that all communication is done via the wired interface. If that doesn't work, I'm not quite sure.

UMS' DLNA implementation is very bad (I mean that UMS doesn't follow the DLNA standard very well), so there are many reasons why the TV might reject UMS because it doesn't do as it's supposed to. Most renderers aren't that picky though, and most of the time DLNA isn't actually used - UPnP AV is.

The TV is DLNA certified obviously, Sony is one of the founders of the DLNA initiative from what I understand, so it doesn't cost them anything to "certify" something. I was talking about the servers, according to the TV's manual it will only work with "certified" servers. "Certified" doesn't have to do with following the DLNA standard, it has to do with whether or not somebody has paid SpireSpark to verify their capabilities and issue a certificate with their findings: https://spirespark.com/dlna/certification

The main reason to pay for certification is to be allowed to use the DLNA logo and market your product as a DLNA certified device. Put simply, it means that the product ends up in this list: https://spirespark.com/dlna/products/

It might just be a red herring and that this isn't something they actually enforce, but if Sony is checking UMS against the list of "certified" servers before allowing access, it obviously will reject UMS. I have no idea if this is what they're actually doing, I just noticed that the manual mentions that the device "must" be DLNA certified.

Except for that, I have no other idea. As I said, there is a loong way to go before UMS is DLNA compliant, so there are plenty of possibilities why a device could reject UMS simply for not following the rules. There are signs of some kind of communication issue in your log.

I was kicked off the UMS development team for criticizing all the bugs that are being ignored and even worse added all the time, so I'm not going to dig in to the details to try to figure out what might go wrong. Some of those that still defends the current "strategy" will have to do that. In my view, most of the code added since 7.0.0 is of a quality that is unacceptable. Thus, I would recommend trying the last version of UMS 6.x, which I believe is 6.8.0. If you're lucky that will make a difference, but it's in no way certain.