Hi to all from Croatia i have a few questions i am new too wireless networks but have one installed in my village so we have a problem ! I have Routerboart RB433 AH with 2*
R52 cards and 2 SW antenas 180 deg, 18 dBi and cabels Belden H-1000 that s installed on 40 meter high tower so visibility is great so i have two networks on wlan 1 i have conected 7 clients , ack timeout 56 us lowest signal is - 83 on wlan 2 i have 3 clients the lowest signal there is - 70 … we are all using grid antenas 24 db on acces point Canyon WFAP,
cable Belden H-155 we are all about 500 too 1000 meters far from ap ( mikrotik)! few days ago everything worked just fine and than yeesterday the ping started to goo wild up to 500 ms 600 ms its really anoying i triedd to change frequency and then everything was ok for about 2 hours and than again i dont know what too do have tested all my equipment and everything seems fine ! so please if anyone has any idea ! ty sry for bad english 
seems like ur user is maxing out . how much bandwidth have u assigned to him and how much does ur CPE support.