Member Avatar for elmoualh

I have an SRW2024 10/100/1000 switch in my office, but I can't access it using wired Ethernet from my laptop. I just can't see the LED blinking on my NIC.
Knowing that the NIC is functioning good, I can connect to other networks via cable, but not to this one.
I tried many ports, but still I cannot connect. When I directly connected the laptop to the switch, I noticed that the port LED blinks for a second, and the stops for like 3 seconds, blinks again, and so on...

Any suggestions?

Regards,

  • 3 Contributors
  • 4 Replies
  • 427 Views
  • 4 Days Discussion Span
  • Latest Post Latest Post by hamidvosugh

Dani AI

Generated

Short, practical troubleshooting summary that expands on the replies from and and targets the laptop-specific failure described by .

The SRW2024 is a managed, autosensing gigabit switch — every RJ‑45 port supports auto MDI/MDI‑X and will normally not require a crossover cable. That makes a bad cable less likely if other machines work on the same port, but it does not rule out intermittent wiring faults or a physical port problem. (manualslib.com)

Common causes when one laptop won’t keep a link while other PCs do: NIC driver or OS power‑saving features (Energy Efficient Ethernet), a speed/duplex or autonegotiation mismatch, or the switch blocking the MAC via port security (port lock/port shutdown is a configured option on these switches). The SRW2024 can limit/lock MACs and can be configured to shut a port when an unauthorized MAC appears. (manualsdump.com)

Quick, ordered checks to run now:

  1. On the laptop check link state and speed (Windows: Network Connections / Status or ipconfig /all; Linux: sudo ethtool <iface>). If the NIC is forced, set it to autonegotiate.
  2. Temporarily disable NIC power saving / EEE in the adapter properties and update/roll back the driver.
  3. Give the laptop a static IP on 192.168.1.0/24 (for example 192.168.1.2/24) and try to reach the switch management IP 192.168.1.254 to access WebView. (usermanual.wiki)
  4. If you cannot reach it, connect to the console (38400, 8, N, 1, no flow control) and check Port Status, Port Configuration, Port Security and the MAC table. (studylib.net)
  5. Run the built‑in cable test / diagnostics from Admin to verify wiring continuity. (manualowl.com)

If the console shows the port is “locked” or the switch lists a different MAC, remove the lock or clear the learned MAC and re-enable the port. Avoid a factory reset until you have the console access and have exported the configuration.

Recommended Answers

All 4 Replies

Member Avatar for BlackFetus

..hi there!..did you try to use the SRW2024 switch to other computer?..is the adapter of the switch is good?,maybe there is a short circuit around the adapter wires..try to check it..if the issue still continues, i think your switch is damaged and need to replace by a new one..i hope it helps!..^_^..

Member Avatar for elmoualh

This is no the case. The switch is brand new, the adapter is functioning well and the port is working on other computers.

Member Avatar for BlackFetus

..is the cable correct?..did you check if the cable has correctly crimp?..the cable color arrangements?..did you use a straight-through cable?..give a post..^_^..

Member Avatar for hamidvosugh

May be some sort of port security is enabled on the switch. you can check it by accessing configuration of the switch. In that case there should be web-management configuration or using the console port of the switch. Let me know if you need help in configuring through the console port.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.