CPE510 cannot find any WIFI signal
Hardware Version : Not Clear
Firmware Version :
ISP :
Hello,
I have received a CPE510 device and I cannot manage the module to show any WIFI signal via the Survey option at the 5GHz (a). Also cannot display anything at the 2.5GHz (n). I have in parallel other WIFI devices and they display correctly all WIFI signals available.
The spectrum analysis show clear activity at the 5GHz.
I would expect the client module to be pretty simple to configure. Therefore I think the device is broken. Any help please before I return the device?
Thanks
Admin comment - 2016-01:
Thread Locked
The spectrum analyzer screenshot shows that your 5GHz Signals are all located within band1[5180~5240], which equals to U-NII-1[channel.36~48].
Your Cisco AP is broadcasting in channel 36~48, which is not available in Spain by default.
CE regulations apply to Spain so that CPE510 can only survey band3[5500~5700] in region code of Spain.
If you want CPE to see the SSID, you can change region to Test Mode and do the survey for a test.
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....and more thanks from me. The performance and especially latency of the connection is now much greater, and now within the regulations!
Matt
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MattNZ wrote
Does DFS relate to this in some manner? I assume so, in the channels above 5260, or even in the 5480+ zone.
Yes, it does. An outdoor AP needs to implement DFS/TPC as well as an indoor AP which uses U-NII-2A indoor or U-NII-2C outdoor channels. That's why indoor APs often do not implemet the U-NII-2 band at all (A and C both require DFS/TPC).
Here is a good overview of world-wide 5 GHz frequency allocations and requirements.
Yes, the hardware works extremely well, along with the software if configured correctly, however it would seem prefectly sensible for the wizard at least to have a question relating to channels or 'outdoor', so users who are not fully aware of the technological intricacies can work through to a resolution.
Honestly, I wonder why there is a wizard at all. It's not that difficult to configure a CPE manually.
There is a note at first login asking for agreement to have Pharos devices only be deployed by a professional, so you can't hold TP-Link responsible if regulatory authorities knock on your door and seize your WiFi equipment because you did run it in Test mode - yes, those inspections happen pro-actively nowadays (at least in continental EU), since interferences caused by abusing frequency bands has become a big problem for commercial and military use of the 5 GHz band. That's also the reason why newer CPE510 V3 models don't let one enable Test mode anymore (what's a pitty if needed to test a link sporadically), albeit the firmware still has it.
TP Link advertise the EAP225 to be indoor and outdoor, but don't lead you down a particular path on your need. I have only just found the 'channel limit' option in the Omada software, (now that you mention it below, so thanks for that). I see it won't use channels below 5350.
That's another story: In older Omada controller versions one could enable/disable the channel limit per AP, which makes sense if an EAP225-Outdoor is installed indoors. Someone then had the idea to make the »Channel Limit« option a global option and have the controller apply it to every EAP225-Outdoor automatically. So, you cannot use mixed indoor/outdoor setups of EAP225-Outdoor with the same controller anymore. Bad idea if you ask me.
All units have the latest firmware, and they still perform in the same manner, with 'test-mode' selection required to see the AP's I wish to connect to. Perhaps if the location is set to countries other than the UK, the channel width is different, however I followed the wizard......
The problem is that DFS is required by law, even in U-NII-2A which is used by some indoor APs. Thus, a fixed DFS channel isn't actually fixed, even not in Test mode. In former firmware versions for the CPE510, DFS could be disabled to force a fixed channel, but that option has been removed, too.
Yes, you're right that TP-Link could make it clearer what conditions need to be met in which regions regarding channel limits.
But even the important requirement to properly ground an outdoor CPE is stated very clearly in the Installation Guide and almost nobody obeys or even reads this (that's the reason why you can find many posts here about suddenly broken CPEs or CPEs behaving abnormally after they did run fine for some time - until a heavy lightning storm happens).
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My pleasure if you find the informations useful, have fun with your CPE!
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