Question about Computers & Internet
I have a rca dcw725 router. everything was fine until all of the sudden i get a no or limited connectivity error what do i do. i already system restored to a date prior to the problem, please help me...
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Posted on Jan 02, 2017
SOURCE: Connection Issue ~ D-Link DI 514
Connect to your router, then on the computer click start/run, type CMD at the >, type ipconfig /release, then ipconfig /renew this will reset all ip address from your computer through your router to your modem. this should fix the problem. BPCS
Posted on Dec 30, 2007
Do a powercycle. Make sure to completely turn off the modem, router, after 30 seconds, turn on the modem first then the router.
If that will still not work, perhaps there is a need to update the software of your router.
Posted on Aug 24, 2008
SOURCE: usr8054 router losses connection
What you can do to this problem is reflash the firmware of this router, then you need to reset the router by pressing the reset button for 15 seconds and after that reconfigure the settimgs of the router and observe if you still have the problem , hopefully that will fix the issue of your router...
Posted on Oct 19, 2008
resetting netsh was a good start. I would suggest starting with pulling the power on the router for about 5 to 10 minutes and then plugging it back in. give it a couple of minutes to reconnect to the modem and then try connecting to it again wirelessly. I had an issue with my dlink gigabit that stumped me and a cold reboot was the only thing that worked
Posted on Jul 15, 2009
SOURCE: wep key
WEP stands for Wired Equivalent Privacy, a standard for WiFi wireless network security.
WEP is vulnerable because of relatively short IVs and keys that remain static. Even if WEP is enabled
WEP is used to protect wireless communication from eavesdropping. A secondary function of WEP is to prevent unauthorized access to a wireless network. Though this function has not been explicitly mentioned in the 802.11 standard, it is generally considered to be a feature of WEP.
WEP relies on a secret key that is shared between a mobile station (a laptop with a wireless Ethernet card) and an access point at base station. The secret key is used to encrypt packets before they are transmitted, and an integrity check is used to ensure that packets are not modified in transit.
If a user activates WEP, the NIC encrypts the payload (frame body and CRC) of each 802.11 frame before transmission using an RC4 stream cipher provided by RSA Security. The receiving station, such as an access point or another radio NIC, performs decryption upon arrival of the frame. As a result, 802.11 WEP only encrypts data between 802.11 stations. Once the frame enters the wired side of the network, such as between access points, WEP no longer applies.
WEP uses the RC4 encryption algorithm, also known as a stream cipher. A stream cipher operates by expanding a short key into an infinite pseudo-random key stream. Before transmission takes place, WEP combines the key stream with the payload/ICV through a bitwise XOR process, which produces ciphertext (encrypted data). XORing the key stream with the ciphertext yields the original plaintext. WEP includes the IV in the clear (unencrypted) within the first few bytes of the frame body. The receiving station uses this IV along with the shared secret key supplied by the user of the receiving station to decrypt the payload portion of the frame body.
In most cases the sending station will use a different IV for each frame. When transmitting messages the beginning of each encrypted payload will be equivalent when using the same key. This means that after encrypting the data, the beginnings of the frames would be the same, offering a pattern that can facilitate attackers in cracking the encryption algorithm. WEP guards against this by allowing different IVs to be used, though the key used is the same.
Posted on Aug 10, 2009
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