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Problem tethering USB between Redmi 7A MIUI Global 11.0.4 and Ubuntu 18.04  

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sagaru
(@sagaru)
New Member

Hi all,

I have just bought a new Xiaomi Redmi 7A and updated it to MIUI Global 11.0.4.

The smartphone has connectivity with Wifi and 4G properly.

I have a PC with Ubuntu 18.04

When I connect the smartphone to PC through USB for tethering, the PC has no connectivity:sacmis:~$ ip a

sacmis:~$ ip a
7: enp0s20u3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN group default qlen 1000
link/ether 36:c0:b8:8a:be:c2 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.5/24 brd 192.168.0.255 scope global enp0s20u3
valid_lft forever preferred_lft forever
inet6 fe80::60fa:83f9:acb:e5c2/64 scope link
valid_lft forever preferred_lft forever

sacmis:~$ ip r
169.254.0.0/16 dev enp0s20u3 scope link metric 1000
192.168.0.0/24 dev enp0s20u3 proto kernel scope link src 192.168.0.5 metric 100

sacmis:~$ ping 8.8.8.8
connect: Network is unreachable

But if I connect the smartphone to PC through hotspot, the PC has connectivity:

sacmis:~$ ip a
3: wlp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether e4:f8:9c:c5:83:89 brd ff:ff:ff:ff:ff:ff
inet 192.168.43.95/24 brd 192.168.43.255 scope global dynamic wlp6s0
valid_lft 3585sec preferred_lft 3585sec
inet6 fe80::f54a:932b:bd6c:2fed/64 scope link
valid_lft forever preferred_lft forever

sacmis:~$ ip r
default via 192.168.43.1 dev wlp6s0 proto static metric 600
169.254.0.0/16 dev wlp6s0 scope link metric 1000
192.168.43.0/24 dev wlp6s0 proto kernel scope link src 192.168.43.95 metric 600

sacmis:~$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=50 time=63.8 ms
64 bytes from 8.8.8.8: icmp_seq=2 ttl=50 time=264 ms
64 bytes from 8.8.8.8: icmp_seq=3 ttl=50 time=67.7 ms
^C
--- 8.8.8.8 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 63.802 removed link ms

Any idea?

Thanks in advance.

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Posted : 20/11/2019 11:04 am
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