Sorry danymarc, I already took the unit in for repair before I saw your post. It was working well only on the first day, so I doubt somebody switched the polarization (nobody ever opened it)... what...

Well, finally I think I might have identified the problem. What I did - 1. I brought another TL-7510s, and tested it, it works perfectly 2. Then I reset both units to factory settings. 3. Set up both...

danymarc, thank you, I already tried DD-WRT when I was experimenting with that point-to-point setup, but it wasn't any better than stock, so I reverted back to the latest stock firmware. What I'm...

Well, I bought it initially for external point-to-point connection (see the first post from March), but it won't work well either. I couldn't get more than 1 megabyte per second at a distance of only...

Now I have trouble with this device - I have tried to use it as an indoor access point, in order to test 5GHz band on a laptop, and the speed is abysmal... can't get passed 400 kilobytes per second...

Sorry, I have just checked, and I was a bit wrong... price in Serbia for a single 7510 is 65 EUR, and price for CPE510 is 95 EUR. So if I exchange the device, I'd have to pay 30+30 = 60EUR extra......