I use TP Link TL-WR543G Extended Range wifi router, and since yesterday it stopped working correctly.
It worked fine 'till yesterday when i decided to hook up friends laptop to it (wi fi, ofcourse). Since i couldn't remember my admin password (i also forgot my wifi password), i had to reset it. I did everything following the rules from installation guide.
When i turned it on again, it wouldn't receive IP adress from internet provider, nor could i change wireless setting, they were greyed out(see the screenshot in the attachments). Also, laptop didn't get any wifi signal from the router.
I tried resetting again, several times. I also tried updating the firmware, and tested it at my friends house, but nothing helped.
Does anybody have any clue what else could i try, or i can consider this router dead?
TP Link Wifi router problem 
Linear Mode
