Siemens SpeedStream 2604 Router linking issue

Turn-off the firewalls in each and every computer in your network then try re-setting your modem/router, individually. If you're not familiar with this process, Google something like: "Re-setting Siemens SpeedStream 2604 Router" and follow directions, from a credible website. (You may even want to navigate to the Siemens website and look for a technical support entry, which will deal with your particular issue.) You should not have to use a crossover cable, in the configuration you mention. Simply put, your router should connect to your dsl modem, with a straight-forward Cat5 cable and your pc's should connect to the router with straight forward Cat5 cables. Nothing "fancy" is needed here. I'm fairly sure, your issue is configuration/set-up related and you just have to "tinker" with things, until you get it right (there is an off-chance that your router may be failed and though not often, it does happen.) To determine if your router has failed, again, Google something like: "How to determine if my Siemens SpeedStream 2604 Router has failed" or something to this effect, until you see something that seems to apply, to your case. You'd be surprised how many problems you can solve, simply by starting with Google Search! If you feel like upgrading, try one of the 2Wire modems (i.e., 2701HG-B or 2700HG-B) which have four ports; allowing you up to four pc's in your network, in a fairly easy and uncomplicated way. These modems are a bit limited in scope however, this is one of those cases where "they've" traded reliability over complexity and yet, I do not think you'd be disappointed. (They take less tinkering than Linksys or NetGear, etc., and can be fairly secure, if set-up correctly - which also is not at all difficult to do!) Basically, these are very easy-to-set-up type dsl modem/routers. I hope this helps and best of luck. Mustapha

It sounds like you are using a straight-through network cable. Try using a cross-over network cable to connect the your computer to the SpeedStream. One can be purchased for pretty cheap money from any consumer electronics store.