Unable to connect to hotspot

English Network/Internet
1

I am unable to connect to the hotspot created from opensuse machince. I have set up the hotspot via NetworkManager using the following configuration:

nmcli con add type wifi ifname wlo1 con-name hotspot autoconnect yes ssid Lair
nmcli con modify hotspot 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared
nmcli con modify hotspot wifi-sec.key-mgmt wpa-psk
nmcli con modify hotspot wifi-sec.psk "12345678"

The connection has been successfully set up, but when i try to connect to it from my mobile device it is showing me an error stating that can’t connect to the wifi.

lspci -nnk

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
	Subsystem: Lenovo Device [17aa:3974]
	Kernel driver in use: r8169
	Kernel modules: r8169
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8852CE PCIe 802.11ax Wireless Network Controller [10ec:c852] (rev 01)
	DeviceName: Realtek
	Subsystem: Lenovo Device [17aa:5852]
	Kernel driver in use: rtw89_8852ce
	Kernel modules: rtw89_8852ce

When i try to connect my mobile devices abruptly show can’t connect error. I tried connecting while monitoring the dmesg logs for my wireless, but there was no errors.

journalctl -fu NetworkManager

Mar 05 16:51:01 Lair NetworkManager[9864]: <info>  [1772709661.2966] device (wlo1): state change: secondaries -> activated (reason 'none', managed-type: 'full')
Mar 05 16:51:01 Lair NetworkManager[9864]: <info>  [1772709661.2969] device (wlo1): Activation: successful, device activated.
Mar 05 16:51:01 Lair dnsmasq[19144]: started, version 2.92 cachesize 2000
Mar 05 16:51:01 Lair dnsmasq[19144]: compile time options: IPv6 GNU-getopt DBus no-UBus i18n IDN2 DHCP DHCPv6 Lua TFTP conntrack ipset nftset auth DNSSEC loop-detect inotify dumpfile
Mar 05 16:51:01 Lair dnsmasq[19144]: chown of PID file /run/nm-dnsmasq-wlo1.pid failed: please add capability CAP_CHOWN
Mar 05 16:51:01 Lair dnsmasq-dhcp[19144]: DHCP, IP range 10.42.0.10 -- 10.42.0.254, lease time 1h
Mar 05 16:51:01 Lair dnsmasq[19144]: reading /etc/resolv.conf
Mar 05 16:51:01 Lair dnsmasq[19144]: using nameserver 127.0.2.2#53
Mar 05 16:51:01 Lair dnsmasq[19144]: using nameserver 127.0.2.3#53
Mar 05 16:51:01 Lair dnsmasq[19144]: cleared cache
2

Turning off protected management frames has let me connect to the hotspot.
nmcli con modify hotspot 802-11-wireless-security.pmf 1

But I am not getting internet access in my mobile, if I am connected to cloudflare warp in the PC. I was able share the internet via hotspot in arch linux before. Any help on this would be appreciated.

3

The issue is solved completely by turning on the firewall and allowing masquerade. If you want quick solution just copy paste the below

sudo firewall-cmd --add-masquerade --permanent
sudo firewall-cmd --reload

If you don’t want the firewall just use kernel IP forwarding.
sudo sysctl -w net.ipv4.ip_forward=1