Update / Upgrade exceedingly slow?

#1

Hi,
I have the pi rock 3B, running on debian. When I use the WiFi, a sudo apt update or sudo apt upgrade command will run exceedinly slowly. Likewise a “sudo apt install” will be very slow, maximum 15kB.sec, usually less than one. Here’s an example (installing locales here) :

Slow%20speeds
Slow speeds.png1394×621 79.6 KB

a WGET command will be swift, a few MB.sec speeds.
Using Eth0 is fast, I only get this issue with WLAN0, which is set to the following in interfaces :

source /etc/network/interfaces.d/*
# Network is managed by Network manager
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
        hwaddress ether 0E:50:e7:xx:xx:xx
auto wlan0
iface wlan0 inet static
address 192.168.1.9
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
#dns-nameserver 192.168.1.1
#dns-nameserver 8.8.8.8

Any ideas what it could be?

Many thanks

#2

What is inside your /etc/apt/sources.list ?

#3

Here goes

deb http://deb.debian.org/debian buster main contrib non-free
#deb-src http://deb.debian.org/debian buster main contrib non-free

deb http://deb.debian.org/debian buster-updates main contrib non-free
#deb-src http://deb.debian.org/debian buster-updates main contrib non-free

deb http://deb.debian.org/debian buster-backports main contrib non-free
#deb-src http://deb.debian.org/debian buster-backports main contrib non-free

deb http://security.debian.org/ buster/updates main contrib non-free
#deb-src http://security.debian.org/ buster/updates main contrib non-free
#4

Sadly never did find a solution to this problem, anyone have any clue what to look out for?

Thanks