Not getting 300Mbs speeds Revisted

[Magnus005]

I see this is a common thread. About a year ago, I moved and and had to get a wireless NIC card for my PC as it is no longer feasible for it to be within cable reach of the modem/router setup, so I purchased a Rosewill Dual Band PCIE card (N600PCE), 802.11 (a, b, g, n). Ever since I installed it, it never liked my Cisco Linksys E2500, also Dual Band 300+300 Mb/sec. Fortunately, after the previous ISP provider issued a DSL modem with built in WiFi, that went away. But we just changed providers and the cable modem has no WiFi, so I had to dig out the E2500 again and at first, it was working at 300Mb/sec, but then it started acting erratically, constantly dropping connection to the network. FINALLY, I uninstalled and reinstalled the original drivers that came with the card and used the LAN wizard that came with it, but I'm not seeing better than 144Mb/sec. Any thoughts or suggestions?
BTW, the router is a version 1 and was flash updated during my setup.

 

[Magnus005]

Well, the issue is sort of fixed, I managed to download the latest driver for that model and am fluctuating between 243.x and 300. I'm still curious as to why. I'll mark this as solved after some responses.

 

[Sub Styler]

There's so much it could be;

1. Rosewill may have an updated driver on their website
2. The E2500 may have new firmware available
3. Depending to the quantity of neighbouring wifi networks you may be on a congested channel, in (192.168.1.1 assuming this the E2500) try operating on channel 1, channel 7, channel 14 and seeing if there are significant changes.
4. Try setting the router to G+N mixed mode instead of B/G mode.
5. Try to distance your router away from other electrical equipment (a few feet will normally be fine).
6. Ensure the antennae on both wifi card and router are connected securely and free from dust/corrosion. (do not over-tighten!)
7. Use an antennae on an extension at your PC end to help avoid interference from the PC itself.
8. In windows look at the advanced properties for your network adapter an turn off power saving options, check transmit power is all the way up and nothing seems out of place.
9. In the router setting check the same things.
10. What is your signal strength on the wifi? if anything other than excellent then the speed will drop.
Check the ping to 192.168.1.1 (or whatever the router address is) if greater than >8ms then you could be looking at firewall/winsock/MTU problems.


144Mb/sec is a relatively good wifi speed, is your internet connection faster than that? If not I wouldn't worry about it, there is no benefit unless you are transferring files over a home network?

 

[Sub Styler]

ah you replied before I finished, good news, glad it helped.

 

[theveterans]

300 Mbps connection doesn't mean it'll get 300 Mbps internet due to overhead protocol. You need at least 30-50% of connection bandwidth for the overhead thus the effective bandwidth is only about 150-180 Mbps.