In some pieces (often !) of new version RB711-5Hn (with new PCB and plastic LAN connector) appears problem with regulation of Tx power. If Tx power is set to some value manually (on client board) on near AP has this client signal level -85dB (on faraway AP this client doesn`t connect at all. With Tx power set to default, RB works on maximum Tx power and signal is on near AP.. for example -54dB and signal is stable. Any ideas, where problem is?
I would expect faster reaction to complains from mikrotik support. This is very serious problem. When they save few cents by changing lan connector for the plastic one, ok. Due to it’s placement it is harder to pull the cable off when rb mounted in a box, but it still works.
When they started using those poor-quality mmcx connectors, it’s not ok. But we can still “cripple” the connector a little to make it work..
But the actual problem can’t be fixed by us. I would expect very fast “sorry message” followed by fast replacement.
The picture in second post. See… Tx is default 22dB and in registration is very bad TX signal. This works most of the new rb711
What is unclear?
Thanks
Default settings of TX power, only ssid, enabled nstreme. Only a few board works good, defected have very low output power it looks about -10 dB output power). Boards have never been powered up without anntena. This boards aren’t able to connect to AP for longer distance and i don’t want speak about bandwidth …
They were bought as new from our local (and official) distributor.
Where is problem? Nowdays we must use RB411 with minipci card and think about future … new a new problems with mikrotik …
There are some power limits given by local telecomunication regulator - that’s one reason why we do regulate power.
Same feeling here. Software bugs are acceptable from time to time - nobody is perfect. It’s up to us to test new version on table well before launch it in real network. But when I want to install new customer, I expect that the thing with same product name will be same as last time I bought it. Ok, you wanted to save few cents per board, so u started placing these plastic lan outlets. But you can’t save for the price of bad wireless performance.
To be honest, the late series of 711 made me to look for alternative products. And if ubnt products had better antenas,..
Normis - that is not black and white. In my case - I was wrote it in the first contribution of this thread - if is Tx power on default, then signal is on max, for example -54, BUT if i set Tx manually on 19dBi, signal is -85dBi, measured on AP 200m apart from client. Clear?
Chack the pigtail cables, or if is possible change to another type. In our link it can helped.
The mmcx connector on the board is to short and the pigtail mmcx connector is flapping.
That seems as temperature based.
Bellow are graphs of two RBs associated on different AP on different locations faraway oneself.
For comparison, bellow is graph of temeretures on GROOVE in our area (district).
hi ,
i have the same problem , with two completely new pcs of rb711-5hn
200m to base and signal -50/-81 !
what is strange that when i try btest , suddenly signal goes to -50/-45 and after test goes back to -50/-85
same place rb411 witch the same antenna -52/-52
test in A mode , no changes in power tx ( default)
i tried other pigtail and other antenna and also different base , result was the same 30 dB difference between rx and tx
i think there is something wrong with this series …
hi ,
i have the same problem , with four rb711-5hn, one rb711-5hnD and Groove A-5Hn
800m to base and signal -62/-81 RX/TX
same place RB 433 and CM9 or R52-nM -62/-62 TX/RX witch the same antenna -62/-62
TX power 14dB
if set TX power to default, signal is good TX/RX
i think there is something wrong with this series …
number series after SN /127 (Groove-A), /143 (RB711)
everywhere
All quintessentialretale to this problem was described very clearly in this thread in previous posts by other users.
