Instead of "suspecting" me, maybe you should try helping. Especially because you work for D-Link. I`m sorry that I have to tell you how to do your job.
The fact that I`m not like your regular tech support client, always calling when the smallest issue appears, is because I work in IT and that`s what Ive been doing my whole life AND I like to troubleshoot on my own. You should respect that, not suspect it. Because at least I`m reading your manual and I`m not calling to ask you how to access my router or how to change my password.
For two weeks I did troubleshooting on my own and also searching various forums for similar issues etc (and I`m not the only one with this problem). It took me two weeks because not everyday when I`m coming home from work I`m in the mood for troubleshooting. Working 8 hours with computers is enough sometimes. So after that I called your tech support. I don`t want to comment now on the quality of service provided. It`s not what i`m trying to do here. I am an understanding person and I did n`t got mad on the phone after calling 4 times, talking with 4 different people (for 45 minutes per call), because no one could resolve my incident.
And to end this, I`m telling you that when I use ONLY my DSL modem to go online, I`m NOT getting any disconnects. And I`m not going to suspect my ISP yet, after 2 years of stable internet provided to me. I will call them after I know for sure that my router is working properly.
I should have also mentioned that before I noticed that I was getting disconnects, I have upgraded from firmware 1.04 to 1.05. I thought that 1.05 is just a bad firmware and I reflashed back to 1.04 version, but unfortunately I had encountered the same issue. I`m not 100% sure if this is the incident that triggered my issue, because I did n`t checked the logs for a stable connection right after the firmware update, but a couple of days after.
I purchased this router after reading many reviews and when I got it, it had the best throughput and it was dealing very well with large number of connections. D-link advertisements we`re saying similar things. And probably DIR655 still is the best for these things (in the consumer segment, of course).
Now I`m waiting for D-link to stand behind their products and help customers with their problems.
I hope now that you are happy, because I have justified myself in front of you. I also hope that you will stop treating me like a "cyber-thief" and start treating people who purchased your products, like customers.
Thank you.