Download the latest drivers, firmware, and software for your HP DeskJet 3755 All-in-One Printer.This is HP’s official website that will help automatically detect and download the correct drivers free of cost for your HP Computing and Printing products for Windows and Mac operating system. From the dropdown menu, simply select Update Driver Software Now click on Browse my Computer to locate driver software On the next window, click on let me pick from a list of device drives on my computer; Make sure that ‘Show compatible hardware’ in not checked Find the network adaptor manufacturer and select the driver you wish to install. The CGNM-2250 delivers speeds of up to 960Mbps with twenty-four bonded downstream channels over its DOCSIS interface. The integrated four-port Gigabit Ethernet switch and Wi-Fi 3×3 802.11n+802.11ac dual-band MIMO Access Point enable fast and easy home entertainment networking.

Some users have reported wireless connectivity issues with current, and new AC and AX devices. Microsoft has reported symptoms and the cause of this. You can find more about this in the article linked here.

This issue occurs if the Wi-Fi hot spot uses wireless APs or routers that do not support the 802.11 power save protocol.

What does this mean for you, this means when you purchase a new device, and you are using it on older wireless APs or routers, that it will not be able to utilize the features of your new device. Particularly the 802.11 power save protocol that is mentioned above in the article. Which in turn can cause your wireless devices to drop frequently, have bad connections when you are only feet away from your wireless device. (If this sounds like the issue you are having, then we recommend you start on #8 first, and experiment with disabling Dynamic MIMO Power Save)

Please note that this article is not meant to be followed step-by-step to completion. Instead, it’s a list of suggestions that are known to be fixes for wireless drops and disconnects, with the most effective suggestions at the top. Once you find something that works, there is no need to read or implement the rest of this guide. As such, it is best to implement each suggestion one at a time, with testing afterward to see if you have resolved the problem.

If you are experiencing a problem where you are unable to browse or ping the Internet or your router, but you remain connected to your network, please click here.

Drops and disconnects are, unfortunately, still a part of using Wi-Fi Internet. They’re frustrating, and they seem to happen at the worst, most annoying times, but with all of the different technology that has to come together to work correctly, it’s surprising that Wi-Fi is generally very reliable!

We want your Killer Wireless adapter to be the most reliable part of your Wi-Fi connection, so we have put together the steps that you can take when you are encountering Wi-Fi drops, that are most likely to resolve the issue. Some of the items in the list below are specific to our adapter while others are more general. In our experience, most Wi-Fi disconnects are due more to the wireless environment than any specific wireless adapter. Here are the steps that our experience has shown are most likely to solve Wi-Fi disconnect issues:

1. Update your Wi-Fi adapter’s drivers to the latest available from our website. Click here for instructions on how to clean install the newest Killer Control Center that is appropriate for your Windows build.
2. Update your motherboard or machine’s BIOS. The BIOS is especially crucial to wireless on a laptop, as laptop manufacturer’s are constantly releasing BIOS updates to address Wi-Fi issues. You can usually easily find the support downloads section for your specific machine or motherboard by using Google to search your machine’s model number, followed by “downloads.” Make sure you read the instructions before you flash the BIOS!
3. Update your motherboard or machine’s chipset drivers — these control resources within Windows. You can also find these on your support download page. If the manufacturer has not updated in a long time, you can also go straight to the chipset manufacturer (Intel or AMD) and get newer, but more generic chipset drivers. Your results may vary, with those.
4. Reset your entire network and network stack. Click here for our guide on resetting your networking devices and network stack. Even if you have done some of these things at various points, it’s worth it to do all of them, in that order, to make sure everything is reset correctly.
5. If you are using any antivirus or firewall application, temporarily uninstall it, then restart your machine. Unfortunately, disabling these applications does not prevent them from manipulating network packets – they have to be temporarily uninstalled. If this resolves the issue, you may be able to reinstall the application using a freshly downloaded copy, and the disconnects may not return. If they do come back, refer to the support team for that application.
6. Change your Wi-Fi adapter’s power settings. Click here for our guide on Wi-Fi power settings.
7. Check your Wi-Fi signal strength. You can see this in the Killer Control Center in the Wi-Fi Analyzer menu after clicking your Wi-Fi network (make sure to switch to 5 GHz if you are using a 5 GHz network, or 2.4 GHz if you are using a 2.4 GHz network). You will see “Signal Strength” appear at the bottom of the Killer Control Center. Anything below 80% and you are very likely to see drops and disconnects, especially when transferring large files or while gaming. If the signal strength is below 80% when you are in the same room as the access point, with a clear line of sight between the laptop and the access point, then there is very likely something wrong with the machine’s antennas. If you can’t get 100% signal strength when within 5 feet of the wireless access point, then the issue is an antenna issue – in such a case, you will need to contact the machine manufacturer for repair or RMA options, unless you feel comfortable opening the machine and checking the antenna leads yourself.
8. Experiment with changing your Wi-Fi adapter’s Device Manager settings. Try changing one setting at a time, then testing, to see if the change helped. To get to these, right-click Start, click Device Manager, double-click Network Adapters, double-click your wireless adapter, click the Advanced tab. Then, click the following settings in the “Property” box, and change their values in the “Value” box:
   1. Dynamic MIMO Power Save: Experiment with disabling
      
   2. Preferred Band: If you know for sure that either 5 GHz (often Wireless-AC) or 2.4 GHz (often-Wireless-N) wireless signals should work better in your situation, you can try setting a preference here.
   3. Roaming Aggressiveness: This determines how quickly your wireless adapter will switch access points when there are multiple saved access points in range. If the aggressiveness is set too low, it is more likely to hang on to an access point with low signal strength, even if there is a better option available. If it is set too high, you will experience Wi-Fi drops if multiple nearby access points have similar signal strengths, as the adapter will switch between them often, disrupting the data flow. If you have numerous saved access points in range, this setting deserves tweaking and testing.
   4. Wireless Mode: This dictates which types of wireless connections to which your adapter is allowed to connect. Generally speaking, you should leave this to its highest available setting, such as 12 – 11 a/b/g/n/ac, which means the adapter will connect to Wireless-A, B, G, N, or Wireless-AC access points. However, some users have reported that, especially with older Wireless-N access points, restricting Wireless-AC adapters to 09 – 11 a/g/n has improved Wi-Fi reliability for them. If you are unlikely to encounter Wireless-AC access points and speeds, this is worth exploring. The only types of wireless connections that are currently in widespread use are Wireless-N, AC, and, to a much lesser degree, Wireless-G.
9. If you are only experiencing problems with one network, and the Killer Control Center’s Wi-Fi Analyzer shows that you have a signal strength of over 80, then the access point probably needs a firmware update.
   1. If this is your home network, and you are using a router which you have purchased and connected to the modem that is provided by your Internet Service Provider, updating firmware is usually easily done. Refer to your specific router manufacturer’s instructions on doing this. If the router sports automatic firmware updating, don’t trust it. Check the version that is loaded on the device against the current version available on the device’s website. Very often, you’ll find that you are not running the latest version and that you will need to update manually.
   2. If this is your home network, and you are connecting wirelessly to the modem that is provided by your ISP, then you will need to contact your ISP and have them update your firmware. Updating firmware is usually a quick click of a button and a small wait for their support team, but they will sometimes say that their modems update automatically. Ask them to please verify, by firmware version number, that your modem is using the most up-to-date firmware version.
10. One other thing you can try is the Windows Network Reset. The Windows Network Reset will reinstall your adapter and will reset many things that are not easily accessible otherwise. The Network Reset will also reset all saved Wi-Fi networks, including their passwords, and will remove all associations with any virtual adapters. To use this, click Start, type Network Reset, click Network Reset, and follow the prompts until completion.
11. If you continue experiencing slowdowns or disconnects, you may need to adjust your router’s channel and channel width settings. Router settings can be the cause of wireless drops and slowdowns even when only one device is experiencing issues, and if the problems are not consistent. Click here for our guide on deciding how to configure your router.

If none of these solve the issue for you, please feel free to reach out to support by clicking the button on the left.

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