Yes, powerline bridging is possible.
Yes, powerline bridging is possible.
Heylo, you're facing a common issue with powerline Ethernet. The setup in room 1 works fine, but moving to another room causes a huge drop in performance. You're wondering if you can upgrade to two new powerlines for the rooms and connect them directly without using Wi-Fi. That might help, but it depends on your landlord's approval since phase couplers could be needed. If not, Wi-Fi is the next best option, though signal quality will likely suffer due to walls.
Are you discussing power line adapters? I haven't heard of "power lan." If you mean power line adapters, they should be connected together, but running a cable might not fully resolve the problem. However, if you can run a cable from the second adapter to another room, directing it to the computer would be manageable, even if it's not in the wall.
Powerline adapters act as simple bridges, transforming a layer 1 signal. You might connect two adapter pairs and see it function, but performance varied. I’m assuming you mean: router to Ethernet cable → PL0/1 → power line → PL0/2 → Ethernet → PL1/1 → power line → PL1/2?