Slow connection speed with wpa2-enterprise,aes,peap,ms-chap-v2

[userx14]

I get normal connection speeds at home with my normal WPA2 (around 8MBps), but at university we have an wifi (eduroam) which is wpa2-enterprise encrypted (AES,PEAP,MS-CHAP-v2) and the speed is extremly low, around 5KBps.

And I also get this in a permanent loop (every 30 seconds) in the syslog:

Apr 24 17:06:47 deb dhclient[850]: DHCPREQUEST of 141.58.59.135 on wlx18bb266de2a1 to 129.69.252.49 port 67
Apr 24 17:06:47 deb dhclient[850]: DHCPACK of 141.58.59.135 from 129.69.252.49
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4873] dhcp4 (wlx18bb266de2a1):   address 141.58.59.135
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4875] dhcp4 (wlx18bb266de2a1):   plen 19 (255.255.224.0)
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4876] dhcp4 (wlx18bb266de2a1):   gateway 141.58.63.254
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4876] dhcp4 (wlx18bb266de2a1):   server identifier 129.69.252.49
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4877] dhcp4 (wlx18bb266de2a1):   lease time 60
Apr 24 17:06:47 deb dbus[591]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4877] dhcp4 (wlx18bb266de2a1):   nameserver '129.69.252.252'
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4878] dhcp4 (wlx18bb266de2a1):   nameserver '129.69.252.212'
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4878] dhcp4 (wlx18bb266de2a1):   nameserver '129.69.252.202'
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4879] dhcp4 (wlx18bb266de2a1):   nameserver '129.69.252.232'
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4880] dhcp4 (wlx18bb266de2a1):   domain name 'rus.uni.de'
Apr 24 17:06:47 deb dhclient[850]: bound to 141.58.59.135 -- renewal in 29 seconds.
Apr 24 17:06:47 deb NetworkManager[595]: <info>  [1556118407.4880] dhcp4 (wlx18bb266de2a1): state changed bound -> bound
Apr 24 17:06:47 deb systemd[1]: Starting Network Manager Script Dispatcher Service...
Apr 24 17:06:47 deb dbus[591]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Apr 24 17:06:47 deb systemd[1]: Started Network Manager Script Dispatcher Service.
Apr 24 17:06:47 deb nm-dispatcher: req:1 'dhcp4-change' [wlx18bb266de2a1]: new request (1 scripts)
Apr 24 17:06:47 deb nm-dispatcher: req:1 'dhcp4-change' [wlx18bb266de2a1]: start running ordered scripts...

But I would guess that this is due the short lease time of dhcp there.

Some additional info:

• I have verified that the rtl8xxx driver is no longer in use
• with the default driver I had very weak reception, probably because on of the antennas is not connected, but ANT_SET did not resolve that problem
• the reception of both wifi's is good (above 85%) with the rtl8723bu driver
• with other devices in the uni wifi I get fast speeds of up to 85MBps
• I have tested CONFIG_POWER_SAVEING with both y and n and it doen't seem to make a difference
• Non-Concurrent Mode is in use
• I'm currently using the master branch of the repo, but I'm going to test 4.3.16 and test if it makes any difference

[userx14]

Hm, seems to be a rushed conclusion on my side as the wifi worked perfectly again when I was alone in the uni wifi, so seems to be more related to full 2,4ghz bands.