Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

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Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#1 Post by Wiki » 17 Dec 2020, 11:59

Hi,

I am working in two different locations, one with 35 ESPEasy + 10 Tasmota devices, one with three ESPEasy + 7 Tasmota devices. In one of the locations I changed the router from Telekom Speedport W925 to Fritzbox 7490. The Fritzbox 7490 had firmware 7.21 installed, the Fritzbox 7590 at home 7.01. In this combination I have had problems to get NETBIOS through the VPN (Which I built up formerly using a 7272 behind the Speedport) and I upgraded the 7590 to fw 7.21. NETBIOS started working again.

But instantly it seemed as if I had an almost complete breakdown of the far away WLAN with the 7590, it has been working stable for years before (It felt more stable with the old 7272 and FritzOS 6.84, but I was forced by the provider to change to 7590 due to changing the DSL from ADSL to VDSL). The location with the 7590 is 500km away so I started analyzing here in the small network using the 7490.

One of the ESPEasy devices I attached to my PC using the serial port.

Setting WLAN security of the 7490 to WPA+WPA2 (yes, I know, I shouldn't do this anymore) results in an almost unaccessible WebGui of the ESP.

Setting WLAN security to WPA2(CCMP) I can see the following log with recurring MQTT disconnections:

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161308 : Info   : EVENT: MQTT#Disconnected
161396 : Info   : EVENT: MQTT#Connected
184167 : Info   : WD   : Uptime 3 ConnectFailures 0 FreeMem 19976 WiFiStatus WL_CONNECTED ESPeasy internal wifi status: Conn. IP Init
192054 : Error  : MQTT : Connection lost, state: Disconnected
192118 : Info   : MQTT : Connected to broker with client ID: MobilTemp_55_55
192120 : Info   : Subscribed to: domoticz/out
192127 : Info   : EVENT: MQTT#Disconnected
192196 : Info   : EVENT: MQTT#Connected
192626 : Info   : BMP280 : Address: 0x76
192627 : Info   : BMP280 : Temperature: 18.82
192627 : Info   : BMP280 : Barometric Pressure: 1015.25
192675 : Info   :  Domoticz: Sensortype: 8 idx: 23 values: 18.8;1015;0;0
192725 : Info   : EVENT: MobilTemp#T=18.8
192839 : Info   : EVENT: MobilTemp#H=0
192897 : Info   : EVENT: MobilTemp#hPa=1015
204614 : Info   : EVENT: Clock#Time=Thu,10:30
214168 : Info   : WD   : Uptime 4 ConnectFailures 0 FreeMem 18376 WiFiStatus WL_CONNECTED ESPeasy internal wifi status: Conn. IP Init
223232 : Error  : MQTT : Connection lost, state: Disconnected
223294 : Info   : MQTT : Connected to broker with client ID: MobilTemp_55_55
223296 : Info   : Subscribed to: domoticz/out
223303 : Info   : EVENT: MQTT#Disconnected
223396 : Info   : EVENT: MQTT#Connected
244167 : Info   : WD   : Uptime 4 ConnectFailures 0 FreeMem 18376 WiFiStatus WL_CONNECTED ESPeasy internal wifi status: Conn. IP Init
254349 : Error  : MQTT : Connection lost, state: Disconnected
254412 : Info   : MQTT : Connected to broker with client ID: MobilTemp_55_55
254413 : Info   : Subscribed to: domoticz/out
254420 : Info   : EVENT: MQTT#Disconnected
254520 : Info   : EVENT: MQTT#Connected
Security settings of the Fritzbox to WPA2+WPA3 results in a complete stable behaviour of the WLAN using the monitored device.

The device I've monitored reports a RSSI of -77dB, so its almost impossible to loose connection. I tried ESP_Easy_mega_20201130_normal_ESP8266_4M1M as well as ESP_Easy_mega_20201130_normal_alt_wifi_ESP8266_4M1M, Wemos D1 mini.

Due to compatibility for some old hardware at home, the 7590 was set to WPA+WPA2 - what a mess.

For me it looks like as if the FritzOS 7.21 with its huge changes of the different WLAN protocols including Mesh functionality causes the problems. Does anyone have similar observations?

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#2 Post by TD-er » 17 Dec 2020, 15:10

Hmm too bad I don't have a Fritzbox router anymore.
I do have some Fritz repeater 1750E units and can try to see if those also have a firmware update available to test the differences.

Edit:
Looks like it indeed can be updated to 7.21
https://nl.avm.de/nc/service/downloads/ ... ter-1750e/

I will try it later with one 1750E on the old firmware and one flashed to this 7.21 to see the differences.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#3 Post by Wiki » 17 Dec 2020, 16:45

Tonight I will downgrade the 7490 to 7.01 and will report....

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#4 Post by Wiki » 18 Dec 2020, 00:32

Puuh, if I had known before I would had thought twice about doing that, downgrading a fritzbox. All settings gone, I had to flash twice, seven smart thermostats had to be readded, telephone book gone. No way to read the backup file from fw 7.21. But now the 7490 is back to fw 7.01.

With WLAN security settings WPA2(CCMP), during an hour of serial logging dumped to a file MQTT disconnect happened only twice with the same device at the same location which has had the problems before. With fw 7.21 it was almost two times a minute (!).

I think, I can confirm that at least the logged MQTT disconnects of the ESP were caused by the firmware update of the Fritzbox from 7.01 to 7.21. Response times of all of the ESP8266 based devices - ESPEasy as well as the Tasmota ones, increased (as I feel) dramatically.

Still the question: did anyone out there observe similar problems? Meanwhile I've found some few posts talking about reduced transmitting range of 7.21.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#5 Post by Micha_he » 18 Dec 2020, 09:25

I can look at my ESP-Devices (Fritzbox 7590, Fw7.21) at the weekend. Are you're MQTT-disconnections shown in the web-log too?
Logging in via comport is complicated at me.

Sometimes the Fritzbox-WLAN looks a little unstable (Android-Phone and iPhone too), since the update to Fw7.21. But it's just a feeling...
Maybe the version 7.24 (should be available in a few days) works better !?

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#6 Post by Wiki » 18 Dec 2020, 11:15

I've tried out the 7.24 (labor build) - no difference at all.

And yes, I felt to have recognized that at least the time between starting the WLAN on the phone and a working connection is sometimes a question of a few seconds with 7.21. With 7.01 it feels almost instantly.

Not every MQTT disconnect appeared in the web-log when I was logging using serial log in parallel but the MQTT reconnect.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#7 Post by Wiki » 18 Dec 2020, 16:47

Because its boaring watching the web log I've set up a small rule:

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on Clock#Time=All,**:*0 do
  Publish domoticz/in,'{"idx":24,"nvalue":0,"svalue":"%uptime%"}'
  Let 1,[MQTTCounter#Uptime]
  TaskValueSet 1,2,[VAR#1]+10
endon
on MQTT#Disconnected do
  Let 1,[MQTTCounter#Sum]
  TaskValueSet 1,1,[VAR#1]+1
endon
Unbenannt.PNG
Unbenannt.PNG (5.46 KiB) Viewed 20759 times
to get an idea how many disconnects I get over the time. Storing the total uptime in a dummy variable gives me an overall idea independently from reboots of the device.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#8 Post by TD-er » 18 Dec 2020, 23:12

Have not yet tested with the Fritzbox repeater units here, as I have not been around a computer much the last 2 days.
Hopefully thinks will get more structured soon.
For example my girlfriend just got home from a 12h shift (which is absolutely uncommon in the Netherlands) due to huge re-arrangements in the hospital where she is working because of the increasing number of Covid patients.
And here in lockdown, you really can't do much concentrated work with a 6-year old around.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#9 Post by Wiki » 19 Dec 2020, 01:51

[OT on]
At this time I am one of the rare lucky ones who is almost not (or better: no more) affected by Corona in daily routines. In spring during first Corona my mother was still alive and I had to take care about her, searching a care home and arrange all her daily things - and all this during the first high-Corona. She died in summer (not related to Corona - just 92 years old) and now I only have to take care of her house and myself. But so I probably can imagine what it means to have a 6-year old around the whole time.
I am with you and please say hello and Thanks a lot to your girlfriend being that close to Corona and doing her job in a hospital.
Don't stress, there are more important things in life than ESPs.
[/OT off]

What I did now is I've installed a Wemos D1 Pro with external antenna in the carport, far far away from the 7490 (running 7.01), RSSI reported with -92dB.

On sunday I will return home and try to repair my absolutely broken Wifi network - broken by the firmware update of the 7590 Fritzbox (still running 7.21), I suppose. And I will report.

I don't know if it makes sense to step after AVMs hassle - if there is any.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#10 Post by TD-er » 19 Dec 2020, 11:19

Well it is a very popular brand, at least in Germany and also here in the Netherlands for those who were once a customer of XS4all.

So if their main firmware appears to do something to the WiFi, then for sure it is going to be a topic for the next few months.
And maybe what they changed could lead to new insights on why the ESP's still sometimes crash on some WiFi networks and work rock solid stable on others.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#11 Post by Wiki » 19 Dec 2020, 11:20

Over night I had two devices monitoring MQTT Disconnects, showing the sum of MQTT disconnects over uptime in minutes:
Unbenannt1.PNG
Unbenannt1.PNG (1.91 KiB) Viewed 20732 times
Unbenannt.PNG
Unbenannt.PNG (1.41 KiB) Viewed 20732 times
Because I've never traced something like this before I don't have any experiences, whether these results are normal or acceptable, but far way better than the disconnects twice a minute I did recognize using fw 7.21 on my Fritzbox 7490, documented in my opening post. These snapshots are related to the fw 7.01.

Next week when I am back home I will doublecheck these results with my Fritzbox 7590 at home which still is running on fw 7.21.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#12 Post by Wiki » 19 Dec 2020, 11:30

Erm, concernig stability, at home I had a lot of devices with stability problems. Even if the devices in my network at home are almost unaccessible I can testify, that one the last releases flashed by me could be named as rock solid:
Unbenannt2.jpg
Unbenannt2.jpg (42.02 KiB) Viewed 20731 times
I just took this snapshot of one of the devices which rebooted several times per day in the past.
[edit]
to show, its a snapshot on time:
Unbenannt3.jpg
Unbenannt3.jpg (8.64 KiB) Viewed 20729 times
[/edit]
Last edited by Wiki on 19 Dec 2020, 11:37, edited 1 time in total.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#13 Post by TD-er » 19 Dec 2020, 11:32

Do you also log/trace these values?
For example in Domoticz or something capable of charting the data?
That would be nice to see if the disconnects are somewhat equally spaced in time, or maybe happen in a burst.
Also correlating those disconnects with the RSSI may be usable.

If you send those values via a controller, the data will be kept and retried a number of times before it is dismissed.
Sending via the rules may not buffer it, so the critical values are then lost if the WiFi connection is lost.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#14 Post by Wiki » 19 Dec 2020, 11:48

No, up to now the data reside in the memory of the two devices. But no problem, I will do so.

Publishing out of rules will go through the controller loop, too?

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#15 Post by TD-er » 19 Dec 2020, 11:58

MQTTpublish is using the queue of the first enabled MQTT controller, so yes that's the same as using a controller.
SendToHttp is not using a buffer.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#16 Post by Wiki » 19 Dec 2020, 12:01

OK, thank you.

Could you give me an idea how to setup a customdevice in Domoticz to trace more than one datafield? Up to now I use Domoticz "as is" with no customization.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#17 Post by TD-er » 19 Dec 2020, 12:09

I think for Domoticz the quickest way is to add a task per value and just send it to a controller from the task. (call taskrun from the rules if you want to trigger it from the rules)

For those units I needed to send 2 values to a custom IDX type in Domoticz, I used sendtohttp, but that's not useful right now.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#18 Post by Wiki » 19 Dec 2020, 12:15

This will work as desired?

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on Clock#Time=All,**:*0 do
  Publish domoticz/in,'{"idx":24,"nvalue":0,"svalue":"%uptime%"}'
  Let 1,[MQTTCounter#Uptime]
  TaskValueSet 1,2,[VAR#1]+10
endon
on MQTT#Disconnected do
  Let 1,[MQTTCounter#Sum]
  TaskValueSet 1,1,[VAR#1]+1
  Let 1,[MQTTCounter#Sum]
  Publish domoticz/in,'{"idx":28,"nvalue":0,"svalue":"[VAR#1]"}'
  Let 1,[System#RSSI]
  Publish domoticz/in,'{"idx":27,"nvalue":0,"svalue":"[VAR#1]"}'
endon

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#19 Post by Wiki » 19 Dec 2020, 12:17

Erm, not quite awake today morning, has been a long night:

Code: Select all

on Clock#Time=All,**:*0 do
  Publish domoticz/in,'{"idx":24,"nvalue":0,"svalue":"%uptime%"}'
  Let 1,[MQTTCounter#Uptime]
  TaskValueSet 1,2,[VAR#1]+10
endon
on MQTT#Disconnected do
  Let 1,[MQTTCounter#Sum]
  TaskValueSet 1,1,[VAR#1]+1
  Publish domoticz/in,'{"idx":28,"nvalue":0,"svalue":"[MQTTCounter#Sum]"}'
  Publish domoticz/in,'{"idx":27,"nvalue":0,"svalue":"[System#RSSI]"}'
endon

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#20 Post by Wiki » 19 Dec 2020, 12:27

Ha! And I knew, why I did put the total surveillance time into a dummy variable. Have a look at the uptimes:
Unbenannt4.jpg
Unbenannt4.jpg (32.14 KiB) Viewed 20720 times
During saving the rule happened:
Unbenannt5.jpg
Unbenannt5.jpg (32.83 KiB) Viewed 20720 times

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#21 Post by TD-er » 19 Dec 2020, 12:59

The value of the dummy task is saved to RTC and restored at boot, so it is not really strange the Uptime of the MQTTcounter task is incrementing even after a reboot.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#22 Post by Wiki » 19 Dec 2020, 13:10

Yes, I know, thats exactly why I chose this way storing the data :-)

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#23 Post by Oetsch » 19 Dec 2020, 21:22

Hi
just got this link to check if my problems are caused by a similar issue. Also running a 7590 with 7.21 together with a AVM 310 Repeater FW 7.13.

Since middle of this week I´m also having big issues within my wifi and yesterday a very big disaster. Many devices aren´t working within the wifi and even the router->repeater connection is making trouble. One big issue is the firmware 1.9.2 from several Shelly devices which is known for very often disconnecting to the wifi. My thought was that this is the big driver. After trying 1.9.3 rc4 beta version this problem wasn´t fixed. So massive effort to downgrade the shelly devices in a buggy network. But after 50% success the wifi is still not the same as before. Some devices (ESPEasy + Tasmota + Shellys) I have not seen in the network for days.

So very interested in your results! And isn´t there an easy solution for downgrading by fw file? Establich direct connection from PC to Router without switches isn´t nice to handle for me.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#24 Post by Wiki » 19 Dec 2020, 23:26

No way to downgrade the fw of Fritz without having it connected to your PC using LAN interface. Even choosing another LAN port than No. #1 on your Fritz may result in a faulty downgrade. Believe me, I'ver spent half a night to get it done. And you will be not able to import a backup of your Fritz done by fw 7.21 into the box with fw 7.01.

I also tried the labor version 7.24 from AVM. No better results in wifi stability, felt even worse. I have no idea, what the guys at AVM are doing, but for me it feels like they do everything except their job and are ignoring that there are older devices in the field than the last pinky-punky-folded-LTE-Samsung-whatever or so. Who the hell supports WPA3????

I will be playing around with the different downgrades, voices told me, that fw 7.12 should be more stable than 7.01 and 7.21.

Just stay tuned, I will report, seems as if I will do a job for more than us.

But next results will be not possible before tuesday to thursday.

[edit]
and yes, since fw update I have an almost complete breakdown of my wifi network at home. What a mess, I'm 500km away (until monday)
[/edit]

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#25 Post by Oetsch » 20 Dec 2020, 14:02

Thx and great to get some information.

For me I´m still not sure if it´s caused by the AVM FW. FW7.21 was released beginning of October and FW7.13 end of November. Normally I wait some days before I install to see the feedback. So FW7.21 should be more than a month in operation therefore I´m not sure if this is the cause. More likely to think about the repeater FW. But so far have not found any guides to downgrade (recovery folder of AVM for this repeater is empty).

The router + repeater is operating again but the repeater not very stable. Wifi signal is going up and down and there are also reconnections. Recognized 99% ongoing Systemload in the web menü of the repaeter. The 7590 is normal.

Problems based on Shelly firmware is known and reported by many people so cannot really say what it is until solved....

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#26 Post by TD-er » 21 Dec 2020, 14:15

Have you tried to force B/G mode in ESPEasy?

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#27 Post by Oetsch » 21 Dec 2020, 17:52

me?

One ESP is forced to b/g wifi. Others (2 units) are not. Today I have seen from external vpn connection that 1 Shelly 2.5 and 1 ESPeasy Unit is back in wifi network. These 2 units are maximum disctance away /lowest wifi signal i have.
After checking the router repeater connection it is stable again and up to 95% of maximum speed is shown. Before it was unstable and only 0-20% speed. Nothing is changed, only whenever possible, a shelly 2.5 unit is downgraded to old firmware. So AVM firmware seems not realy to be my problem but cannot exlude 100%

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#28 Post by Micha_he » 21 Dec 2020, 18:53

My test over the last 3 days has ended with:

No MQTT-Disconnections with ESP-firmware 'ESP_Easy_mega_20200829_hard_SONOFF_POW_4M1M' and FritzBox 7590 'Fw7.21' !

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#29 Post by Wiki » 22 Dec 2020, 01:09

Which security settings for WLAN did you choose? My experiences showed me, that the stability may depend on them. And good luck til next reboot of the box.

Returning home I just rebooted the 7590 (fw 7.21, no wifi communication at all) here at home, WLAN back again and useable.(??)

Today evening I rebooted the box once again - total breakdown. Devices shorn in the menue of the box as connected, hardly ping worked, nothing else. Security settings were unchanged on WPA2+WPA3. Security settings (using cable due to inaccessible WLAN) to WPA (CCMP), reboot, no wifi communication possible. Rebooted once again, everything fine. What the hell...?

I will go back to 7.01 or 7.12, these two versions worked for me with the 7590, the 7490 is back on 7.01 and serving stable for three days now. The momentary behaviour of the 7590 is not acceptable for me with fw 7.21.

I don't want start bashing AVM, the deep analysis of the problem is far off my skills. So I will stop posting here. As I can see now here at home this problem is not ESP related, Laptop, Smartphones and Raspberries are affected by this problem, too.

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Re: Wifi problems after upgrade of Fritzbox 7590 to FritzOS 7.21 [seemed to be solved?]

#30 Post by TD-er » 22 Dec 2020, 10:06

Have you found any discussion thread about these wifi issues at one of AVM's boards?

My first impression is that it may be related to some power saving feature, but that's just based on your observations.

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