Mission Planner not reading mavlink from port in ubuntu?

I just install the bionic64 mission planner on my ubuntu desktop 20.04.

I directed the telemetry from my Simulator (which is on another device) to my computer.
I check the port 14550 it is receiving data.
But my mission planner just isn’t showing any data?
I tried to run apmplanner2 using sudo, nothing works. I had already added myself into dialout.

What could be the problem?

do you have more than one network interface?

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp0s25: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether f0:de:f1:47:c9:ca brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:24:d7:9d:4e:4c brd ff:ff:ff:ff:ff:ff
inet brd scope global dynamic noprefixroute wlp3s0
valid_lft 85254sec preferred_lft 85254sec
inet6 fe80::62de:5111:bc9f:a1f4/64 scope link noprefixroute
valid_lft forever preferred_lft forever

Nothing seems out of place.
The mavlink was out to I am receiving data. Just mission planner not reading it.