Thank you for the welcome. Unfortunately, I wish I was on better terms. I really appreciate you responding so quickly and value your feedback as I have seen that you are a very active member of these forums. I hope we can solve my issue today. Unfortunately, I don't have a great knowledge of routers nor my ISP so if there is any information I am unable to collect, I apologize.
What make and model is the main host router that you connect the 552 too?
We are using an AT&T NVG 510
Is this your modem router combination? http://www.ron-berman.com/wp-content/uploads/2011/11/nvg510manual.pdfWhat region are you located?
Sunny Southern California [San Diego]
What ISP Service do you have? Cable or DSL?
DSL
What ISP Modem make and model do you have?
As far as I know....we are not using a modem? We used to have a modem and router and now we have the single router which may also be serving as a modem. We have a single [generally speaking] "box" that is supplying internet. Nothing else associated / connected.
Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask.
The representitive that I am speaking with has absolutely no idea what I am talking about [and I don't really have a clue either]. So I am unsure as to how to get this information for you. She is transferring me to the manager so I may be able to get some information here soon...
Link>Wireless Installation Considerations
What wireless modes are you using on the main host router?
I'm not sure :[ Is there a way for me to check?
If you can access the ISP modem at 192.168.1.254:
http://www.ron-berman.com/2011/11/24/motorola-nvg510-help-page-for-att-u-verse-users/Shows an example of what to look for.Try single mode G or N or mixed G and N?
Channel Width set for Auto 20/40Mhz or try 20Mhz only.
Try setting a manual channel to a open or unused channel. 1, 6 or 11. 11 for single mode N if the channel is clear.
^^ I'm not sure what any of those are. :/
Not sure if this ISP modem/router combo has this option of setting channels or not.What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only. Some WiFi adapters don't support AES, so you might want to try TPIK only or Auto.
I am using WPA2-Personal
What wireless devices do you have connected?
To my immediate computer, I am using my ollldddd Netgear Wireless-N USB Adapter [WN111] in order to establish internet to be posting here. There is one other computer in the other room that is using a wireless keyboard and mouse.
Any cordless house phones?
No house phones.
Any other WiFi routers in the area? Link> Use InSSIDer to find out. How many?
2 total - mine and then 1 other.
Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
Turn off all devices accept for one wired PC while testing.
This ISP Modem/Router being your main host WiFi and access point. I don't personally hold these devices to be fully capable of supplying the 552 good quality signal and could be the problem and not the 552. You need to see if you can test this 552 using a different host WiFi router if possible. Do you have any friends, family or neighbors you could see if you could take this adapter to and test? Or maybe a mom and pop computer shop that might do a quick test? Maybe Geek Squad could test.Another test would be to turn OFF the WiFi on the ISP modem and get you one of these and connect it to the ISP modem and test it with the 552: D-Link DAP 1360, 1513, 1522, 1525, 1533Testing out of these would offer you a better signal and probably get better operation with the 552.
Kind of at a hard place at this point. There are some testing that would help you check to see if the 552 is actually good or bad by testing at a different location using a different wireless AP device. This would let you know either way. I would presume that if it worked well at a different location, the problem would be the wireless on the ISP modem/router is not working well with the 552. I personally rather use wireless devices that are well designed specifically for this purpose. ISP modems and router should work well however experience has showed me that in some cases are sub standard and only offer basic features and operation.