MFM will have to make some design changes. This is one of the few drawbacks of product evolution.

And what about bad series of RB711, RB411AR, Sextant? We must change our preferences? My ticket is Ticket#2011122466000182, no answer from Mikrotik - I have about 50 bad units for one week ...

I don't understand what you mean?

MFM will have to make some design changes. This is one of the few drawbacks of product evolution.

And what about bad series of RB711, RB411AR, Sextant? We must change our preferences? My ticket is Ticket#2011122466000182, no answer from Mikrotik - I have about 50 bad units for one week ...

I don't understand what you mean?

Dear Normis -

I bought in December 100 units from mikrotik, most of them are RB711 with 1 chains. 70 % of them had bad TX part - the transmit power is from -5 to 0 dB in default, there is no way to make them working. Other ones died in one week.

Our employers must change all these units (Happy Christmass!!) and replace them with working RB411 with R52n-M or some other minipci card with MMCX. It is working excelent. Where is problem? I think, the problem is in RB711 and our distributor said "We dont sell no RB711, because about 90% goes to RMA and we have no information from Mikrotik".

We must buy expensive solution and Mikrotik is using us as guarantee.

Any solution from Mikrotik?

Please contact the seller for any hardware issues, they will repair/replace devices under warranty.

Please contact the seller for any hardware issues, they will repair/replace devices under warranty.

And who will pay time of our employers? And I give you my money and you bring me bad units from factory and said "Sorry, make RMA, we will change it".

Normis - do you know, when you start produce repaired RB711 without hardware bug? A number of series? I dont want lose my money with bad units.

Please contact the seller for any hardware issues, they will repair/replace devices under warranty.

And who will pay time of our employers? And I give you my money and you bring me bad units from factory and said "Sorry, make RMA, we will change it".

Normis - do you know, when you start produce repaired RB711 without hardware bug? A number of series? I dont want lose my money with bad units.

There is no mass problem like you seem to be thinking. Any device that you buy, has warranty for 15 months, if you think you found a hardware issue, contact seller for RMA.

Please contact the seller for any hardware issues, they will repair/replace devices under warranty.

And who will pay time of our employers? And I give you my money and you bring me bad units from factory and said "Sorry, make RMA, we will change it".

Normis - do you know, when you start produce repaired RB711 without hardware bug? A number of series? I dont want lose my money with bad units.

There is no mass problem like you seem to be thinking. Any device that you buy, has warranty for 15 months, if you think you found a hardware issue, contact seller for RMA.

Ok - do you mean, I had bad luck and from 100 units is 90 unuseful?

Im going to make RMA, but I will report, when new units will have same issue.

if you have 90% failure, maybe you are doing something wrong.

Ehm ... I have network about thousands of clients ... And if I change f*cking RB711 and give in the same box RB411 with your R52n-M, all is running correctly. I think, problem is not in our hands.

if there is a problem, send to distributor to look at it. without you sending it back, nobody can say for sure what's the issue.

if you have 90% failure, maybe you are doing something wrong.

Ehm ... I have network about thousands of clients ... And if I change f*cking RB711 and give in the same box RB411 with your R52n-M, all is running correctly. I think, problem is not in our hands.

if there is a problem, send to distributor to look at it. without you sending it back, nobody can say for sure what's the issue.

Hi Normis, You absolutelly ignore what was wrote on start of this thread? Probelm is clear. We sending defected RB711 to our distributors during whole December, our distributor replace defective RB711 with next defective RB711.... your whole production of RB711 - 5Hn from last month is defective !!! You have to test boards in low temperature about zero degrees of Celius and less, then Tx power is weak. Old revision of RB711 (such witch metallic RJ45) was ok.

Agreed. There is absolutely a problem. I will take some screen shots and send a supout.

if there is a problem, send to distributor to look at it. without you sending it back, nobody can say for sure what's the issue.

Sorry Normis, but we send November and December defective pieces on the RMA.
www.i4wifi.cz and www.ipmedia.cz (official distributors Mikrotik) DONT sell us new pieces rb711 until it is established where the problem is!
Ask the distributors that it is not a local problem. Thanks

Ticket#2011111766000401 without answer

You need to send some of the affected defices to the mentioned distributors, so we can inspect them. So far, they have not been able to provide us with actually non working samples. We are working with distributors to investigate this, but you need to help them too.

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?

Next affect customers: http://forum.mikrotik.com/viewtopic.php ... 00#p290194

I have same problem

2 RB711G-5HnD
2 RB711-5Hn

really nasty surprise!
Bulgarian importer blame the buyer ...

1+

Tx signal with RB711-5Hn -90dBm. Tx signal with RB411 + R52Hn -58dBm. Exactly same conditions, software version, antenna, power supply, etc, etc. I would say there is a problem with that board model.

I'll RMA the RB711-5Hn and come back to RB411 until Mikrotik recognizes the problem and fixes it.

Regards.

We found an issue that can affect some devices. If anyone has any problems with lower than usual TX power, please return the device for RMA repair. The devices will be returned in fully working condition. New devices that are being shipped now, don't have this issue anymore.

Before returning your device, make sure the problem is not caused by pigtails, cables, alignment or software configuration.