Ok, guys I was playing with my router as I was disappointed with it's perfomance.
First of all when I got it it was awfull.
Normal speed near router 10 mbps and only 1-2 mbps if I am just 15 meters apart from my router
So I called customer support, they recommended to change channel to 11.
I did so. It improved my perfomance a lot! now I can get 8-10 mbps from anywhere in the house.
But still sometimes, I have awfull perfomace. At those moments If I ping my router I get over 100 ms pings
So I downloaded program to monitor wireless networks on the neighbouhood.
First of all I discovered over a dozen of them...
And discovered that there were a lot of them which use channel 11 aswell.
So, that was probably why I had problems.
Channel 6 is out of way, as it was default one and awfull one.
Changed to channel 1. Lost connection in the other room
So now, I am thinking of channel 13. I have discovered only one network which uses it. And it seems to be far away from me. SO I changed router to use channel 13.
So far it seems to work great. Pingtest gives me Ping: 20 ms and Jitter : 1-3 on the farest corner of my house. whereas on channel 11 I always used to get jitter above 10 altaset.
So I deiced that Channel 13 was perfect for me.
And now guess what. I am going to another laptop which runs the same OS (Windows 7 32-bit) but it cant discover the network
So, my question is, How can I make PC to search channel 13?
Or can you give me other advices to improve perfomance.
Provider: Vrgin Media
Router : DIR-615; H/W: D2 ; Firmware: 1.00VG