Hi There. Welcome to JustAnswer. My name is***** have been working in Internet networking for 20+ years and I am happy to assist you in solving your issue. Please give me a few mins to review your question.
Okay, could you please provide the product model of your TP-Link modem so I can check it's default IP, username and password.
BTW, is it okay or convenience for you to RESET the modem? It might cause your network disconnected if the modem is already in use. To reset it, just pinpoint the reset button (a very small hole somewhere on the modem) for at least 20 secs while the modem is powered on.
Okay, that's fine if you don't reset.
Please advise the hardware version of this modem. You can find it from the product tag on its body. For more info, see here: http://www.tp-link.com/en/faq-46.html
Great. Thanks for the info.
Please do the following.
1. Unplug all cables connecting to the modem, of course except the power cable.
2. Turn off the modem and power it on again after 20 secs.
3. From a Windows computer
3.1 if it is wireless capable, check the available wireless networks and see if there is an open AP named TP-LINK_XXXX or something like that.
3.2 if it has an Ethernet adapter, get a known-good CAT5 cable and connect the PC's network adapter to a LAN 3 port on the modem.
4. Wait for a while and make sure the network is connected.
5. Open a browser, type 192.168.1.1 in the URL bar.
Please let me know if it works to step 5. Thanks.
Any feedback or any difficulty please?
Can you please kindly confirm if the above steps worked? Is there anything else that I can help with?