Hi, my name is Adrian, i’m from Argentina. Sorry for my poor english.
I have a very big problem. The scenario is the next.
I have a Ubiquiti Bullet M2 (with Atheros AR9283-AL1A) like AP connected to 15 dbi Omni Hyperlink. The altitude is 20 meters. I have five customers around (50, 100, 120, 60, 80 meters each one). The CPE customers is TPLINK wa5210g. The AP (Bullet M2) see each customer with very good signal (-60 to -68).
I acquired 2 Mikrotik Groove A-52HPn (because this have 128 mb over 32 mb ram from Bullet, and have more processor speed), for replace the Bullet M2 ap. but the problem is, when clients connect to the GROOVE, this (the GROOVE), “see” each CPE with VERY VERY bad signal (-78 to -84). I re-check everything, the GROOVE is in B/G mode and of course work in 2.4 Ghz. Both, the Bullet and Groove are working in the same frecuency.
I change the GROOVE for the other new, and SAME problem. The CPE of the clients, “SEE” the GROOVE with VERY GOOD SIGNAL (-61 to -64).
What can be the problem? The bullet works all well and not in the groove?
Maybee is a Atheros Chipset problem?
I try this scenario with a Routerboard RB751 - 2uhnd (just for test purposes) like AP, connecting the Omni in the external connector, and WORK VERY GOOD (like the Bullet M2). The radio of RB751-2uhnd is a Atheros AR9283-AL1A, the EXACTLY SAME of the Bullet M2.
How can resolve this?
Thank you very much for you patience and sorry for my english.
Best regards.
Adrián.
