It would be the square wave approximation that introduces high frequency noise.
the noise is so far below the floor of wifi radio there shouldn't be a problem to consider here.
I wish! I have seen the same symptoms here but it did not occur to me what the problem may have been. Within a few feet of the UPS Wi-Fi bandwidth is wrecked. Actually plugged into it, double-wrecked, like reduced from >500Mbps to <20Mbps.the noise is so far below the floor of wifi radio there shouldn't be a problem to consider here.
It may be some other circuitry that is radiating and not the sine wave approximation. Or it could be normal mode noise that the wall wort ac-DC converter is having issues with. Or just the wall wort itself is failing.
Could be the surge strip had some filtering circuit that is not present in the UPS. And thus you are getting more noise from the electrical line. Power from the wall can be "polluted" with radio signals and interference from other devices in your home or even neighborhood.The UPS is plugged into the wall directly. Prior I was using a cheap surge strip, (but I had forgotten to mention).
Try inserting the wall wort on the battery side, but keep it oriented the same way you had it on the surge only side. Any difference ?Unless it is 3 pin: GT-BE98 Pro; GT-AXE16000; RT-AX86U, the rest I believe are 2 pin and equal size blades: BQ16 Pro; (RT-AX5400 I reused RT-AC68U adapter). They all have some model of battery backup. The RPs get plugged into the wall but they also are non-polar.
Sure! <https://www.apc.com/us/en/product/download-pdf/BE425M?filename=APC_BackUPS_BE425M.pdf>@dlandiss Might you share the APC model please?
That does bear further investigation. My (ASUS) router and access points are plugged into high-end APC UPS boxes and I'm getting 660Mbps downloads, so your issue must be triggered elsewhere.Hmmm. I have the wall adapter connected to a polarized extension cord. When I connect it to the new UPS (supposed to be pure sine wave) I get terrible speed. When I connect it directly to the wall outlet it works great. Sadly, something is wrong that just doesn't quite fit....
Did you unplug the UPS from the wall to force it on battery ?
Is the ups plugged into the wall directly or through a plug bar or other device with filtering circuit ?
Time to replace the wall wort ?
Thread starter | Title | Forum | Replies | Date |
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R | What Mesh system do have the most power? | ASUS Wi-Fi | 11 |
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