Sugiro fazer primeiro uma redefinição de fábrica pressionando e mantendo pressionado o botão de reinicialização do roteador por 30 segundos enquanto liga.
Se isso ajuda, está tudo bem. Mas se isso não acontecer, o prognóstico é menos que o ideal.
Outras pessoas na sua situação deram o seguinte conselho.
De Como redefinir o roteador após a atualização do firmware diz (francamente parece magia negra, mas algumas pessoas dizem que ajuda):
I was told by Linksys Support that I should Reset my router after updating the Firmware. I had never heard of this before. They gave me the procedures below :
- Press and hold the reset button of the router for straight 30 seconds while powered on, and then unplug the power cord for 10 seconds and power up again.
- Connect a PC to the port 3 of the router then restart the PC. (This PC should be the one that can get online if directly connected to the modem). No connection yet to the modem, so only router and computer.
- Access the router's setup page then on that PC.
- To access the router's setup page, launch an Internet Explorer browser [or any browser you are using if you don't have IE]. On the address bar, please type 192.168.1.1 and then hit Enter/Return key. A log-in screen will appear.
- A log-in screen will appear. Please leave the username blank or empty and type admin for the password in lowercase and then hit OK.
- On the router's setup page, click on the MAC Address Clone sub tab and click on Clone your PC's MAC then save the settings.
- Click on the Wireless tab. Change the SSID from linksys to your family name or any name that never existed as a wireless network before to avoid network interference.
- Change the channel to 11 as well and make sure that your SSID Broadcast is enabled. Click on Save Settings.
- Click on the Security tab and disable or uncheck the 'Block Anonymous Internet Requests', then click on Save Settings.
- Go back to the Setup tab and look for the Local IP Address which is 192.168.1.1.
- Change the IP address to 192.168.2.1 then save the settings.
- Connect modem to Internet/WAN port of the router and shut down everything for 2 minutes.
- Power on. (Starting from the modem then the router and lastly your PC).
Em Conexão sem fio lenta (WRT54G2) (parece que isso é orientado para wireless, mas pode valer a pena tentar):
- Open up the browser and on the address bar type 192.168.1.1 that will open up the Router setup page.
- Lower the MTU (Maximum Transmission Unit) from 1500 to 1400 or less (usually found on your routers main/ basic setup page)
- Then go to the Wireless tab, keep network mode as mixed, make the Channel Width to 20 MHz only and Channel to 6, 9, 11..
- Adjust the following advanced wireless settings:
- Lower the beacon interval from 100 to 75
- Lower the fragmentation threshold from 2346 to 2306
- Lower the RTS threshold from 2347 to 2304
Se nada ajudar, então você não é o único frustrado proprietário do WRT54G2 .
Caso você queira experimentar o DD-WRT mesmo assim, este artigo da wikipedia lista Versões v1-1.3 do roteador como compatível, mas não v1.5. Aqui está o procedimento de instalação .