The 3801HGV router is a 802.11b/g Wireless Access Point, operating in the 2.4 GHz band. The Intel® Dual Band Wireless AC-7265 is capable of Dual band (2.4 and 5.2 GHz), supporting 802.11a/b/g/n, and 802.11ac. The older AP may not communicate well with the newer adapter.
Here are some initial recommendations that may help improve the connection:
1- Contact the support team for your router (manufacturer, or Internet Service Provider) and make sure you are using the most recent firmware.
2- Try changing the Authentication protocol of the Wireless Network to WPA2 AES, or try with no authentication to check if it helps.
3- Review the settings of your Wireless Network router 802.11b/g, and make sure they match the ones from you AC-7265. Here are some settings that may help improve the connectivity in your 802.11b/g network:
These recommended settings can be found under the Advanced menu on Intel® PROSet/Wireless Software.
802.11n channel width for band 2.4: 20 MHz.
802.11n channel width for band 5.2: Auto (not in 20 MHz only)
Fat channel intolerant: Disabled
Roaming aggressiveness: Medium or less.
Throughput enhancement: Disabled
Transmit power: Highest
Wireless mode: 802.11b/g
On the wireless router check the following options:
Auto channel scan: Enable
802.11 mode: Use 802.11g
Channel width: 20 MHz
4- You might want to disable some features of the AC-7265 that are not available in 802.11b/g networks. This may help communication with the router:
802.11n mode: Disabled
HT mode: Disabled
I changed the settings per your suggestions, but still no luck. FWIW, the AT&T folks also suggested I change to WPA2 only.
Please note that this laptop has no issue connecting to my neighbor's AT&T router, which is a 3800HGV-B and appears to be an even older AP.
Also, my other laptop has an Atheros 9285 adapter, which is also supports /n, and it has no problem linking up to my router.
Any additional thoughts would be very welcome.
Please check the settings in the wireless router, in addition to the settings mentioned before, check if it has a QOS option, if it does, please set it to enabled. Confirm with AT&T if there are any firmware updates available for the router.
Also, contact Dell Support and make sure you are using the most recent driver for your Wireless adapter, as well as other applicable updates provided by the OEM manufacturer.
If the issue persists, please run Intel® Driver Update Utility and update using the generic driver from Intel.
You might want to check with AT&T about the possibility of upgrading the router to one supporting the 5.2 GHz band, capable of 802.11ac or at least 802.11n.
I really appreciate you trying to help. Having said that, I did all the things you suggested, and wireless still doesn't work correctly - it either doesn't connect, or it connects very slowly. I've spent about 20 hours trying to fix and research this issue - over two laptops with the same wireless card.
So, I returned the second laptop with the same adapter, and I asked specifically for any other computer with a different wireless card. And guess what? It works flawlessly. Intel really needs to fix whatever issue there is with the AC-7265.
At this point, I've tried at least 10 different devices, of all different ages and configurations, and there is no connection problem with my AP or WAP with any card other than the AC-7265. I should also emphasize that my standard AT&T router is one of the most popular in the US.
Even if my router is terrible, what am I supposed to do if the wifi card doesn't work at an airport or hotel? Call the SFO or Marriott IT department and ask them to turn off the 5ghz off or switch to WPA2-AES only? How quickly do you think my request would be turned around?
As a consumer and not a pro, all I can say is that this wireless card is bad, and Intel should feel bad - whatever the design is, it's not market ready, and the engineering team needs to fix this as soon as possible - particularly for the newer laptops with no ethernet ports available.
Here are some additional recommendations that may improve the connection:
- Check the Advanced settings of the Windows Power Plan, confirm that the Wireless Adapter is configured for Maximum Performance.
- For testing purposes, disable the Bluetooth device (may be done with a switch in your PC, in Windows configuration, or disabling the Bluetooth radio in Device Manager), and then check if the connection improves.
- To avoid interference, try using a different wireless channel of the 2.4 GHz band. Interference issues are further explained in the document: Quick Checks That Might Improve or Fix Connection Issues
- Try placing the computer close to the router, and check if it gets a better connection.
If the issue persists after applying these actions, please let us know the Driver version shown for the adapter in Device Manager.
Also, let us know the distance to the router, and if there are any walls or objects between them.
I just got the ASUS UX305FA this Tuesday, and I have exactly the same problem- after key in the key, the authentication just takes forever. Then, it says unable to connect.
This laptop also have the same Intel AC7265 chip and no matter what it won't connect to my AT&T U-verse Router.
I don't know how to tell the Router model, but it did say "i38HG" somewhere. So, maybe it's above saying the "3800HGV-B is working" case. However, I did tried everything above Jonathan said, nothing works. (but if ppl having the same problem, please still try what Janathan suggested.)
So, I tried FCBayernFan's comment "the AT&T folks also suggested I change to (Authentication Type) WPA2 only" and I switch Wireless mode from 802.11b/g to 802.11g (I'm not sure this helps). After this step, it just finally connect nicely. maybe it's the combination of all above steps, so everything just works. Now, even when I switch everything back to Authentication Type: WPA-PSK and WPA2-PSK
or Wireless Mode: 802.11b/g
my ASUS UX305 still connect in 1 sec (just turn on/off Wi-Fi)
Hopes it helps someone else.
The Intel AC 7265 hates my wireless network too. I have (47) Motorola AP-5131 access points here running in b/g 11M/54M mode, WPA2 PSK.
I have every other device on the planet connected to these access points, except the Intel AC 7265.
I bought (2) Asus Zenbook UX305 laptops this week for product testing. They work great except wireless. If I go into properties of the adapter in device manager and manually set the mode to "2. 802.11b" they will connect in b mode.
Locking the Wifi nic into "b" mode is not an option for me.
Created a ticket with Asus on the issue, they do not have a solution and suggested returning them to the vendor.
The Zenbooks do connect to other wifi networks, just not our commercial access points. :-(