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Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks. Windows 7 Help Forums Windows 7 help and http://www.sevenforums.com/network-sharing/93003-vpn-gurus-error-721-a.html support Network & Sharing » User Name Remember Me? Password Advanced Search Show Threads http://tata.indicom.photon.error.721.winwizards.org/ Show Posts Advanced Search Go to Page... Windows 7: VPN Gurus: error 721 23 Jun 2010 #1 BigJohnny Win7 8 posts VPN Gurus: error 721 hi, i wanted to implement a vpn connection using microsoft technology. i enabled ras on the host computer which has win 7. the host computer sits behind a di-524 router, so i've error 721 enabled pptp pass through and ipsec pass through, moreover, i set a port forwarding for 1723 and 500 (both tcp and udp) to the host computer. from the guest computer, who sits in a different subnet and uses win xp, i used telnet to verify that the host server can be reached, there was no problem reaching it. then i verified the generic routing encapsulation (gre) is set too, so i've used pptpclnt and pptpserv, and error 721 dell gre check complete successfully. still, when i set a vpn dialup connection, i get error 721 (after verifying username and password). any vpn guru can help me here? thanks. My System Specs OS Win7 BigJohnny View Public Profile Find More Posts by BigJohnny . 23 Jun 2010 #2 chev65 Windows 7 Ult, Windows 8.1 Pro, 9,149 posts San Diego I received error 721, which says the remote computer is not responding. Cause: This issue can occur if the network firewall does not permit GRE traffic (IP protocol 47). PPTP uses GRE for tunneled data. Solution: Configure the network firewall between the VPN client and the server to permit GRE. In addition, make sure that the network firewall permits TCP traffic on port 1723. Both of these conditions must be met to establish VPN connectivity by using PPTP. For more information, see article 888201, "You receive an "Error 721" error message when you try to establish a VPN connection through your Windows Server-based remote access server" in the Microsoft Knowledge Base. Troubleshooting remote access VPNs: Virtual Private Network (VPN) This is what comes up for error 721. Hope it helps. My System Specs Computer type PC/Desktop System Manufacturer/Model Number Home built OS Windows 7 Ult, Windows 8.1 Pro, CPU Q9650-4.275GHz, E8600 4.5GHz, E6750-3.8GHz Motherboard Evga 780i FTW Memory G.Skill PC2 9600 1200Mhz
Download (Tata Indicom Photon Error 721) Repair Tool Step 2: Click the "Scan" button Step 3: Click 'Fix All' and you're done! Compatibility: Windows 7, 8, Vista, XP Download Size: 6MB Requirements: 300 MHz Processor, 256 MB Ram, 22 MB HDD Limitations: This download is a free evaluation version. To unlock all features and tools, a purchase is required. Tata Indicom Photon Error 721 Error Codes are caused in one way or another by misconfigured system files in your windows operating system. If you have Tata Indicom Photon Error 721 errors then we strongly recommend that you Download (Tata Indicom Photon Error 721) Repair Tool. This article contains information that shows you how to fix Tata Indicom Photon Error 721 both (manually) and (automatically) , In addition, this article will help you troubleshoot some common error messages related to Tata Indicom Photon Error 721 error code that you may receive. Note: This article was updated on 2016-10-04 and previously published under WIKI_Q210794 Contents 1.What is Tata Indicom Photon Error 721 error? 2.What causes Tata Indicom Photon Error 721 error? 3.How to easily fix Tata Indicom Photon Error 721 errors What is Tata Indicom Photon Error 721 error? The Tata Indicom Photon Error 721 error is the Hexadecimal format of the error caused. This is common error code format used by windows and other windows compatible software and driver vendors. This code is used by the vendor to identify the error caused. This Tata Indicom Photon Error 721 error code has a numeric error number and a technical description. In some cases the error may have more parameters in Tata Indicom Photon Error 721 format .This additional hexadecimal code are the address of the memory locations where the instruction(s) was loaded at the time of the error. What causes Tata Indicom Photon Error 721 error? The Tata Indicom Photon Error 721 error may be caused by windows system files damage. The corrupted system files entries can be a real threat to the well being of your computer. There can be many events which may have resulted in the system files errors. An incomplete installation, an incomplete uninstall, improper deletion of applica