I’m planning out my next homelab when I move soon. I have the floor plans and it looks like the best place for my computer is not centrally located, so the Wi-Fi won’t be ideal. I’d like to run the cables a short distance so the router would be in a better spot.
I’m just renting and will likely only be here for a year so I don’t want to do any drilling. I just want to secure the cables somehow to the crease where the wall and ceiling meet.
The total length will only be about 20 feet to the router.
You might try using low quality two sided tape then. You can roll a small 1in wide section around the cable at varying points and use the two sides of the wall/ceiling corner for additional adhesion. I say low quality because that tends not to leave much in terms of residue when removed or damage paint.
Another option with either two-sided tape or command strips is to stick to the ceiling section only with good quality fasteners. Especially if the ceiling is “popcorned” then there is more surface to adhere to with tape. It also is very difficult to damage paint or peal anything (at least to any noticeable degree).