Hello Mike, Both ends are running 6.13 ROS (the latest stable) and 3.13 firmware (the latest). I reduced the TX power levels to below card rates and it ran for a lot longer (100 mins) at full tilt, but the remote end went to sleep again, and has not recovered (by script), so I need to travel there to see why. Cheers Steve. -----Original Message----- From: Mike Everest [mailto:mike@duxtel.com] Sent: Wednesday, 18 June 2014 09:55 To: steve@digitronics.com.au; 'MikroTik Australia Public List' Subject: RE: [MT-AU Public] RBMetal2SHPn wireless thermal shutdown? Hi Steve, In which case it certainly doesn't seem like power/voltage levels... Now that I am thinking about it again, I have actually seen a similar report of that same behaviour a couple of months back, and hunting through our support tracking system, I found that the last report of this was apparently corrected by upgrade routerOS to current (v6) version, as well as update of firmware ('/system routerboard upgrade') What level of routerOS, and have you also checked firmware version? Cheers, Mike.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Steve at Digitronics Sent: Wednesday, 18 June 2014 9:39 AM To: 'MikroTik Australia Public List' Subject: Re: [MT-AU Public] RBMetal2SHPn wireless thermal shutdown?
Hello Mike,
Sorry. I should have mentioned that the voltage moves from 23.9V when quiescent to 23.4V when flat out. The run of CAT5 is about 18m.
Steve.
-----Original Message----- From: Mike Everest [mailto:mike@duxtel.com] Sent: Tuesday, 17 June 2014 18:45 To: steve@digitronics.com.au; 'MikroTik Australia Public List' Subject: RE: [MT-AU Public] RBMetal2SHPn wireless thermal shutdown?
Hi Steve,
I suspect that it would be more likely to be related to voltage drop due to increase in power consumption as the radio activity ramps up.
If the power circuit resistance is high (e.g. long PoE cable) then as the radio activity ramps up, the current drawn increases and thus voltage drops. Since radio systems are essentially a peripheral device to the routerBoard, if voltage drops too low then that peripheral will become unavailable and appear as if it has been virtually unplugged from the system.
RBMetal has voltage monitor - check it and see if there is any change during radio operation.
Cheers!
Mike.
-----Original Message----- From: Public [mailto:public-bounces@talk.mikrotik.com.au] On Behalf Of Steve at Digitronics Sent: Tuesday, 17 June 2014 6:28 PM To: 'MikroTik Australia Public List' Subject: [MT-AU Public] RBMetal2SHPn wireless thermal shutdown?
Can anyone tell me if there is a thermal shutdown arrangement within the wireless component of a RBMetal2SHPn?
I have a pair of RBMetal2SHPns on a 13km link and if I turn up the power to get good throughput, the RBMetal2SHPn sending the data shuts down its wireless after some minutes of maximum throughput.
The wlan interface still shows as up, but snooping from the shut down end reveals no stations where it normally shows many. It requires a reboot to get it going again.
It feels like a thermal issue, but the system temperature does not change, and its cold outside .
Any help appreciated.
Steve.
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