If you have just updated the firmware, you probably need to reset the router. The router is reading the old settings, and getting hung-up stuck. Unplug the power from both the router and the cable modem. Plug back in the cable modem first and wait until it is online. Then plug in your router. Does this help? If you have just updated the firmware, you probably need to reset the router! If you've read the previous question and it didn't help, then your router's HTTP Daemon might not be running. See Web Interface: Regaining Access.
In general, resets are not needed. However, it might be necessary in these cases:. Note: The only reason to reset before a DD-WRT upgrade is if memory insufficient to download and flash the new firmware, or similarly, if almost out of nvram. Flashing to or from other third-party firmware is not recommended and may soft brick. A problem for which there is no single common fix. Understanding some basics about networking, subnets, NAT, etc.
Some ISPs not using PPPoE expect the MAC address hardware address of the router to match that of your computer, especially when you used your computer without the router to setup everything initially.
If using PPPoE, make sure you use the correct username and password. For cable and satellite users, generally DHCP is the correct setting. For users trying to share a dial-up connection, you'll need to read the Wiki article Sharing Dialup. This is normal. The addresses are calculated based on your computer's MAC address and "a variable".
It's just a little different from the way the original Linksys firmware worked. The "variable" changes whenever DNSMasq sees a conflict. JFFS needs a minimum amount of free space to function when enabled. The lease table is cleared when the router is upgraded, unplugged, rebooted, and in situations where a config change requires a reboot.
If your computer is already connected when this happens, it will remain connected but will not be in the lease table until the next time it tries to renew. After that you will be able to access the Web interface of your router without using a password. Don't forget to set a new password! After a power cycle suddenly your setup is gone and the router restarts in its default and unsafe state.
To minimize the risk of incurring in a revert, check the power supply mains connection and the DC plug, the contacts should be absolutely reliable. If you can, use UPS. It's also possible to flash a customized firmware, which reloads parameters when needed. It can be found here. For example, when using Putty ssh , "Why doesn't 'man syslogd' provide any output? There is not enough space inside the typical 2 or 4 megabytes of flash-rom to store additional help files.
Qualcomm Atheros based routers, also take a look at Atheros Wireless Settings. If you are looking for settings specific to your router model eg: TX power please search the forums. Try setting the ACK Timing to 0. If you have the transmit power turned up higher than 84 mW, turn it down to 84 mW. Other things that may contribute to a lower error rate: set beacon interval lower than the default of 75, for example , use a different channel aka frequency for wireless so not to clash with other 2.
Use a better antenna than the stock antenna your device comes with, this actually helps you more than increasing output power as this option increases both output and sensitivity at the same time. Somewhere around 84 mW is considered to be the best setting for maximum power with minimum noise for most hardware.
Atheros units use dBm to measure transmit power, 30dBm is mW, most routers will do dBm. Default is usually correct. Use common sense and don't set the power higher than you really need to. If you're trying to get more range, consider using a different antenna and make sure you have a clear line of sight, two of the most critical factors in your router's range.
From a network security standpoint, the transmitter power level should be just enough to cover the intended area reliably. Optimal power settings can be determined by trial-and-error. Many factors affect your range. What method you use to extend your range will depend on whether you are trying to increase the range inside a building or outside. Read the next two FAQs below. Consider getting a good antenna and try setting up your wireless devices with a clear line of sight.
Best range is achieved by using one directional parabolic dish or Yagi antenna and then disabling the other antenna on your router. For a cheap easy antenna option, try www. This site details how to make a directional antenna from household items which can result in 10 db or more in gain.
For situations where you need omnidirectional distance instead of directional linking, be sure to use a good omnidirectional antenna and mount it high enough to broadcast signal in the area of focus. This is often 20 to 50 feet high, depending on the rated signal downturn of the antenna. This means how steep of an angle the donut of radiated signal is pitched down from the vertically-mounted antenna.
Also, try increasing your router's transmit power to 84 mW. DD-WRT also has settings for frame burst and afterburner. You may see an increase in range by turning these off. We hope you like it - feel free to give us feedback and suggestions. For those looking for a complete list or search features by hardware specs we are working on extending the router database to provide these features. But please take care - everybody can edit the information there so we cannot prove that they are correct in every case.
This database may not have up-to-date information and may even recommend a build which might cause issues. As such, you should check the device specific forum Broadcom, Atheros, MediaTek, etc. A lot of the questions you may have are likely, and easily, find-able if you use something like duckduckgo.
If your hardware is not found below, it is probably not yet supported and you risk bricking it. Also see Known incompatible devices or Router detection to determine whether support can be added in the future. If you are looking for a router to buy see this. Which version may I flash? See here. This table below shows the minimum usable Build Version for all devices.
To flash later versions, read the device's wiki and threads, and read new build threads. There are many bad builds. It is stripped-down with only basic features to fit in the limited flash space, and additional software packages are unlikely to fit.
When looking to purchase a new router, users are strongly recommended to avoid 2MB devices. These builds are usually enough for many users, but anyone intending to add additional software packages to their router may require 8MB flash memory or more. Do not flash a Mega build on devices with 4MB flash memory. Check the tables below for support.
These devices have specific builds in their own folder only for use on the respective unit. Use NO other builds.
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