[german only info:
Wenn du nur deutsch lesen kannst: Sag bescheid, dann schreibe ich es deutsch nochmal drunter]
Ok, let´s go on with english
I got my FP3 a few days ago. Update to the lates OS is done and device is set up so far.
I´m strugging at the moment with 1 strange issue about the wifi.
I´ve found a few posts here in the forum (and also some more troubleshooting tips on the net) while describe the issue more or less but by far the closest match was a post by grimmwolf in this forum:
My issue is slightly different:
Turning on the wifi causes a connected/disconnected/connected/… loop for about 5-20 Minutes. Most times while the screen is locked or after I waited long enough - then the connection is suddenly established and stable (for hours … days).
If I turn off Wifi again, restart the FP3 or walking out of the signal zone and back (to cause a reconnect) then the issue shows up again.
Simply spoken: whenever the connection becomes interrupted (by user, distance, reboot of FP) it takes about 5-20 Mins to make the wifi connection stable again which is quite annoying.
Something about my FP´s, router´s and network´s settings
The usual tips weren´t successful on my side like
setting the wifi on FP to 2,4GHz instead of auto
going down to WPA/WPA2
After trying out a lot of tips (which didn´t help) and trying out different network settings I narrowed it down to one important thing; but first some info about my router, network/etc:
I got a Fritzbox 7362 SL as router (2,4 GHz only) with IPv4 & IPv6 activated that also serves as DHCP v4 and v6 server.
Also in the network is a pihole (on raspberry pi) that works as an adblocker and ivp4/ipv6 DNS server.
The pihole´s IPv4/6 addresses are entered in the router and each DNS request is be pushed from the Fritzbox through the pihole and be filtered or not before it goes out to the great wide net.
Before you point at the pihole or the network setup as root of all evil: uhm … not really sure if you should judge that fast
Yes, of course I also tested this setting above with the pihole not filtering anything at all.
That setup works flawlessly for about 2-3 years now with several win/linux pcs, mobile phones, and other wifi devices. Each one works fine just the FP3 got its little issues.
But one little click inside the Fritzbox and its network settings can make a difference:
(Following is translated from my german router interface - bear with me )
Option: DNSv6-Server in the local net
→ if the box in this option is flagged for “Advertise DNSv6-Server via Router Advertisement (RFC 5006)” then this issue occurs.
Below that checkbox is the local DNSv6-Server address entered (= my pihole´s IPv6 address)
This could be a solution for the issue but it also got a downside:
Without this flag for router advertisement all connected devices bypass the blocked website filters from the pihole by switching from IPv4 to IPv6 (if they support it, of course).
Mainly I´m questioning myself about these 2 questions:
Why is the FP3 actually having such issues while several other computers and android 8/9/10 mobiles don´t have any issue when being configured the same way?
Why does the FP3´s wifi become stable after 5-20 minutes and then works flawlessly and fast until the next reboot/wifi restart?
Anyone got an idea … a clue ?