I want to connect my Lenovo Ideapad S510p(Windows8) to the WiFi network of my TP-LINK modem-router. But the laptop does not finds no WiFi network although I can get it with my cellphone and connect to it.
I checked the DHCP leases list of my modem and laptop's mac address was there and there was an IP address associated to the laptop.
But when I ping that IP from my desktop, I get "Reply from 192.168.1.100: Destination host unreachable" where 192.168.1.100 is my desktop's IP.
What should I do?
Thanks

Dani AI

Generated

Key clues from : the Ideapad reports no visible SSID while a phone connects, the TP‑LINK shows the laptop MAC with a DHCP lease, and a desktop ping to that IP returns “Reply from 192.168.1.100: Destination host unreachable” (192.168.1.100 is the desktop). Those signals together most often mean the router has a stale lease or the laptop is not actually associated at layer‑2, or that inter‑client traffic is being blocked (guest/client isolation) or dropped by a host firewall — not a simple “SSID hidden” UI issue alone. This complements the basic UI checklist from and the general suggestions from but points to diagnostic checks that narrow where the packet loss happens.

Diagnostic commands that reveal current state (on the laptop):

ipconfig /all
netsh wlan show interfaces
netsh wlan show networks mode=bssid
arp -a
ping <router_IP>

Look for: a wireless adapter IPv4 and gateway in ipconfig, “State: connected” and an SSID in netsh wlan show interfaces, presence/absence of the SSID in the visible networks list, and whether the ARP table contains the laptop MAC. On the router, compare the DHCP lease table to the wireless “associated clients” list and the timestamp: a lease can persist after disconnection.

Less obvious causes and quick tests: client/AP isolation or a guest SSID will permit internet access but block local pings; separate 2.4GHz/5GHz SSIDs or security mode mismatches can make the laptop “not see” the correct network; duplicate/stale MAC entries cause confusing lease records. A useful discriminator is a phone hotspot: if the laptop joins that hotspot, the adapter and Windows stack are functional and the fault is router‑side; if it cannot, the issue is local to the laptop.

Targeted actions with minimal disruption: check the router’s active wireless client list and logs, temporarily disable client isolation or MAC filtering for a test, clear DHCP leases or restart the router’s wireless subsystem (back up settings first), and allow ICMP briefly on the laptop firewall to confirm reachability. If those focused checks don’t resolve the mismatch between “DHCP lease seen” and “no layer‑2 association,” capture the outputs above and the router’s association table to isolate whether the problem is a stale lease, isolation policy, or a local adapter/driver fault.

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To see a list of available networks

Swipe in from the right edge of the screen, and then tap Settings.
(If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Settings.)

Check the network icon. It'll show if you’re connected and how strong the connection is.
If you’re not connected, tap or click the network icon (The wireless network icon or The wired network icon).

Tap or click the name of the network you want to connect to, and then tap or click Connect.

You might be asked for the network password. You can get it from the network admin. If you’re at home, this is probably someone in your family. If you’re at work, ask your IT admin. If you’re in a public place, like a coffee shop, ask someone who works there.

If you want to connect to this network every time it's in range, select the Connect automatically check box. 

How to Fix Your Wi-Fi Network: 7 Tips to Follow:
1: Check Your Laptop for a Wi-Fi Button or Switch
2: Reboot Your Computer and Your Wireless Router
3: Change the Wi-Fi Channel on the Router
4: Check and Reposition the Wireless Router
5: Restore the Router's Settings to the Factory Defaults
6: Reinstall the Wireless Adapter Driver or Software
7: Upgrade the Router Firmware

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