I’m facing the same behaviour with my FP2. Just bought a second Wifi-Access Point (UnifyAP) which caused the original AP (working fine until then on channel 42) to switch to channel 120. To confirm, that the Problem is related to the channel, I measured the FP2s Wifi Receiption on channel 64 and 120 against the reception of a Galaxy-S9. According to the APs Web-Interface, I got the following results:
Channel
Device
Reception
Reception-Rating (by UAP-UI)
64
FP2
-53
94%
64
S9
-49
99%
120
FP2
-88
7%
120
S9
-52
97%
As you can see, the S9 receiption does not change much between channel 64/120 and while the FP2 has a comparable receiption at channel 64, it completely drops at 120.
All measurements have been made in ~1.5 meters distance to the AP
Running on LoS 17.1
PS: Is it worth opening an own topic for the FP2 problematic, as it is a different hardware, or should I stay here?
Thanks a lot, I could have done a comparison between a FP2 and a Pixel 3a, but I did not think about it!
Definitely yes, it is worth to open a new thread in the FP2 section. Although the issue probably will not be solved, because the hardware is as it is, we can collect experiences from other users there.
Have you also recognized how much damping occurs when holding your mobile while measuring and how the result is when just being placed untouched on a table?
At least the damping actually is different here between both channels.
Please verify if your router has the latest firmware update. I have read that some issues in regard to 5 GHz were solved: UniFi - Rethinking IT - Ubiquiti
I had wifi issues with 5GHz since I got my phone. On FPOOS, on Lineage, with two different core modules, on three different routers and perhaps more. Most of the time, it didn’t connect. I didn’t check the channels though.
I’m currently answering you on it, so yes. Though I suspect my second core module to have a defect, in which case I will have it changed. I am also going to get another FP2 soon, and my brother owns one, so I will be able to do many tests.
When I have time, sure I will. For the moment I’m not home though. And I’ll ask my brother for help, he is more techie than me.
Edit: My brother also has a customizable OpenWRT router with which tests will be easy. I’ll keep you updated.
I recategorized the topic in #discuss:fairphone2 as it was originally instead of #help:fp2, because we are more discussing an issue and doing tests than someone asking others for help. I also took the #lineageos tag away, as it is not limited to one OS.
Please tell me if you want to reverse it.
I do not really understand your motivation to recategorize this thread, because …
And the fact that the Samsung phone works fine on channel 120, but the FP2 does not, is a technical issue which should be investigated. However, you are the moderator, I do not care…
I can confirm, that both APs running on the latest firmware (4.3.20.11298). As also the FP2 is the only of all our devices having any issues, I do not think the APs are the problem
Just tested it again, comparing receiption with the phone in my hand vs. phone lying on hard ground. While I cannot see a big differents between both situations, I recognized that even slightly turning/moving the phone seems to make quite a big difference:
By tilting/ moving the phone within few centimeters, I could reach levels from 5% up to 35% (again ~1,5m distance to the router / channel 120)