Member Avatar for tecman

my labtop connected with my desktop but both computers can't receive any peckets. It tells me that my connection is very good and if I click on the connection status ( in both computers ) it shows me that packets are being sent but I don't receive any packets . And this problem prohibit me using the network.

I hope to solved it . I'm waiting for your information

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reported a direct, wired laptop–desktop link where the adapter says packets are being sent but nothing is received. and covered the basic checks; if those have been verified and the problem persists, the next step is to inspect lower layers (Ethernet frames, ARP and NIC behaviour) and the OS/network stack.

Start by capturing traffic and verifying ARP resolution on both hosts so you can tell whether frames leave the NIC and whether the peer is seen on the wire. A short checklist to run on each machine:

Windows:
ipconfig /all
arp -a
netsh winsock reset
netsh int ip reset

Linux:
ip addr show
ip neigh
ethtool eth0
sudo tcpdump -n -i eth0 icmp

If captures show ARP requests with no replies, the machines are not learning each other’s MAC — that points at wiring, NIC auto-MDI/MDIX, or a faulty NIC/cable. If ICMP requests are issued but never appear on the wire, try disabling NIC offloads (checksum/large send offload) and update or reinstall the driver — offload bugs can make the OS report “sent” packets that never actually leave the adapter.

Check link negotiation and duplex: mismatched speed/duplex between the two NICs can cause severe packet loss even with a “connected” link. On Linux use ethtool (see the man page) and on Windows set speed/duplex in the adapter’s Advanced properties.

If packet captures are empty on both ends, swap the cable, try a different NIC or insert a small switch between the two machines to rule out physical/wiring faults. For frame-level capture and analysis, Wireshark is recommended; for APIPA/auto-address details see RFC 3927. These targeted checks will quickly separate physical, link-layer, driver, and OS-stack causes.

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Member Avatar for John A

my labtop connected with my desktop but both computers can't receive any peckets. It tells me that my connection is very good and if I click on the connection status ( in both computers ) it shows me that packets are being sent but I don't receive any packets . And this problem prohibit me using the network.

Are you on a wireless connection or hardwired? If it's wireless, that opens up a whole new can of worms. Make sure hardwired works first.

Are you running through a router, or a direct connection?

Member Avatar for tecman

My connection is hardwired ( UTP using RJ45 ) and is direct connection between two computer one of them is labtop and the other is desktop.

Member Avatar for John A

Make sure:

- Both computers are getting static IP addresses
- The light on the Ethernet card on both computers are on
- That ping works
- No firewall is interfering

Member Avatar for DMR

My connection is hardwired ( UTP using RJ45 ) and is direct connection between two computer ...

That means you need to be using a CAT5 cable wired in crossover configuration, unless your network cards are auto-sensing. Please verify that.

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