Slow wifi EAP245
Hello,
I got an issue with the WIFI, we used to have 1 EAP245 upstairs but we had a blind spot downstairs so we added another AP. after we added the second EAP245 the Wifi speeds drastically dropped in speed. it went from 500Mbps to 250/270Mbps on both AP's.(Lan speeds stayed 500Mbps) The first AP the one upstairs now has a lot of RX errors ( Could this be related?) We rebooted both AP's in hope it would resolve it self but the issue stays. before writing this post I was trying a few steps from another post. chaning the channels to fixed ones on both and set to bandwith to 80Mhz, without any result. Is there an solution to this problem?
Some information for the setup.
No OC200 Controller.
Netgear R7000 Router > EAP245 Downstairs
Netgear R7000 Router > Netgear GS108 switch
Netgear GS108 switch > EAP245 Upstairs
Both running the latest Firmware version ( 2.4.0 Build 20200117 Rel. 39932(4555) )
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Hi @TallBrian,
Sorry, I cannot quite read the numbers in the screen shots you attached. Are the two EAP's on separate 80MHz wide channels? For example, here in the USA, there are only two 80MHz wide 5.8GHz channels -- 36 & 149.
If you alternate turning one AP off versus the other, do speeds go back to normal when one is off? If so, likely channel interference.
-Jonathan
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Hi, @JSchnee21
I forgot to meantion that I'm from the Netherlands. The EAP lets met choose the 36-48 and al other channels are DFS
I haven't tried turning them off 1 by 1 I will try to do that tomorrow.
Zoomed in images.
I hope these images are better.
-Brian
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Hi @TallBrian,
I've been to the Netherlands several times (Oss, Utrecht, Nijmegen, etc.) for work over the years. It's one of my favorite countries in Europe. I have lots of former colleagues that work at Pivot Park in Oss.
If you're TallBrian, does that make over 2,0m?
Anyway, to answer your question, assuming all of your clients support the DFS frequencies, you'll need to choose a channel for the second EAP that is at least 80MHz more than the first channel.
So for example, 44 and 60.
-Jonathan
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Hi @TallBrian,
One other question. Is the Wifi on the R7000 turned off? If not, it would need to be set to yet a third channel 80+ MHz away from the other two.
-Jonathan
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Hi @JSchnee21,
I'm glad you like the netherlands we try our best! I haven't been in oss personally that's for us dutchies to long of a drive (2hours)
Yes it does indeed 2.10m to be precies it was a ease to install the AP's
I tried to use any of the DFS channels(On multiple devices) none of them worked, I guess that there is way to much radar activity here. Or non of my devices support them
The wifi of the r7000 is turned off indeed.
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Hi @TallBrian,
Here's hoping my two sons break 6 feet. . . I never did :-(
If you're not able to use the DFS channels, you have two choices to experiment with:
1) Use the same channel for both and turn down the AP transmit power to Medium or so. AP's on the exact same channel will take turns and generally co-exist better than AP's on slightly adjacent but overlapping channels. You may need to force the BW to be 80MHz rather than 20/40/80. This option should give you the fastest speeds if you have only a handful of active Wifi clients at a time.
2) Alternatively, you could force each AP to use 40MHz wide channels, and then choose two of the non-DFS channels whose frequencies differ by 40MHz or more.This is the better option if you have a lot of active wireless clients at a time. But the speed for each client will be slower due to the 40MHz limitation.
Here in the USA, most modern Wifi clients are supporting DFS channels these days, and we usually do not have much interference. But, many access points here (including the EAP225 and 245) do not support the US DFS channels frequencies so they are still not much of an option.
-Jonathan
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TallBrian wrote
I tried to use any of the DFS channels(On multiple devices) none of them worked, I guess that there is way to much radar activity here. Or non of my devices support them
Channels 36 to 64 gives you two 80 MHz-wide indoor channels.
Almost any client supporting 80 MHz channel width can handle all indoor channels from U-NII-1 (ch 36 to 48) and U-NII-2A band (ch 52 to 64). Only U-NII-2A requires DFS/TPC.
Thus, set the first EAP to channel 36 (it's channel 42 mid-frequency, using all U-NII-1 frequencies) and the second EAP to channel 52 (mid-frequency channel 58, using all U-NII-2A frequencies). To be sure in case you have clients not supporting 80 MHz channel width, set it to 20/40/80 mixed mode.
If old clients don't support the U-NII-2C band (channels 100 to 128 for outdoor use), changes are that they support the U-NII-2A band (ch 52 to 64, indoor-only, DFS enabled). If you have clients which don't support U-NII-2A frequencies, consider to link them up to the 2.4 GHz radio.
BTW: A trick for zooming into small screenshots in posts is to right-click on the image, select open image in new tab and then click on it to zoom to the actual size. If TP-Link community team could add this image link to the image shown in the post, one could just click on the image to view it in original size.
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hi @JSchnee21 and @R1D2
First of all thank you for trying and helping me to find a solution to my problems.
i've tested them seperatly and both still stayed at 270Mbps, i've done some wifi analyzer test around my house even outside and did see a lot of ****(Hidden) streams in the area that I was unable to see with my Phone analyzer I guess my phone (Samsung s9) or the app that I used "Wifi analyzer" doesn't show them al. chaning the channels didn't do a lot
Using the 40Mhz bands I was only able to get 180Mbps. I then tried to connect to channel 52 after awhile I did manage to connect to channel 52 it took a while before the AP started to actually broadcast. But still this didn't have any effects on the speeds The one downstairs was set to 36 and the one upstairs set to 52 both still stayed at there 270Mbps.
The only devices that didn't support those frequencies where my smart bulbs but thats expected
I did notice that after changing the settings and testing al diffrent methods the EAP started to struggle with broadcasting in general the 2,4Ghz bands didn't go higher then 20Mbps where 100 was the speed before chaning anything. The "reboot device" option didn't change that nor did the "reset to factory defaults". I then tried to uplug but that didn't have any effect as well I had to hard reset the EAP to get it back to the 100Mbps.
-Brian
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