iobilly Posted February 21, 2010 Share Posted February 21, 2010 I live in an apartment where I can easily see over 40 wifi routers within my area. This causes major interference and I frequently get dropped connections. Is there a way to set my laptop (connected to ethernet to the router) to broadcast wifi signal at 5ghz (I have intel wifi link 5300) just to see if it will ease the problem. any ideas? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/ Share on other sites More sharing options...
+BudMan MVC Posted February 21, 2010 MVC Share Posted February 21, 2010 well if your on windows 7 sure you could set that up to be a accespoint pretty easy. http://connectify.me/ Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592265132 Share on other sites More sharing options...
Roger H. Veteran Posted February 21, 2010 Veteran Share Posted February 21, 2010 connectify is definitely the easiest way to do it. I think the built in software can do it just fine as well. I don't know if you can specify 5Ghz however. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592265160 Share on other sites More sharing options...
iobilly Posted February 21, 2010 Author Share Posted February 21, 2010 i dont seem to see a way to enable 5ghz only mode.. based on what i see, it uses 2.4ghz. any other software similar to this? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592265238 Share on other sites More sharing options...
nullie Posted February 21, 2010 Share Posted February 21, 2010 Yes, Intel MyFi which is included in the Intel WiFi driver package. You have to manually install it. Won't do 5GHz, though, and I believe N mode can't be done using ad-hoc mode, only access-point mode. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592265260 Share on other sites More sharing options...
Roger H. Veteran Posted February 21, 2010 Veteran Share Posted February 21, 2010 On 21/02/2010 at 17:29, nullie said: Yes, Intel MyFi which is included in the Intel WiFi driver package. You have to manually install it. Won't do 5GHz, though, and I believe N mode can't be done using ad-hoc mode, only access-point mode. Yeah, for some reason i remember that being the case. 802.11A (5Ghz) didn't have Ad-hoc support either and i think it's a carry over from that. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592265312 Share on other sites More sharing options...
iobilly Posted February 21, 2010 Author Share Posted February 21, 2010 is this a limitation for any wifi adapter? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592266116 Share on other sites More sharing options...
Yusuf M. Veteran Posted February 21, 2010 Veteran Share Posted February 21, 2010 On 21/02/2010 at 22:05, iobilly said: is this a limitation for any wifi adapter? No. As far as I'm aware, only some wi-fi adaptors support 802.11n ad-hoc. Check your wi-fi adaptor's settings. If you can't find it then chances are, it doesn't support it. It should work on the 5GHz band as I don't see any reason why it shouldn't. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592266144 Share on other sites More sharing options...
IrfanL Posted February 22, 2010 Share Posted February 22, 2010 Check the following link. There is support for creating a Ad-hoc network with 802.11a (the 5GHz) with mentioned Intel adapter. You will have to unable it via device properties. How to access and configure advanced Wi-Fi adapter settings Just to be clear there is no Ad-hoc support for native 802.11n (, may be available as vender specific feature). As you can see from the configuration you have to switch back to either 802.11b/g or 802.11a for Ad-hoc networks. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592267864 Share on other sites More sharing options...
iobilly Posted February 23, 2010 Author Share Posted February 23, 2010 bummer. seems like there is no way to force my adapter to N only Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273702 Share on other sites More sharing options...
+BudMan MVC Posted February 23, 2010 MVC Share Posted February 23, 2010 So why don't you just get a N router? What channels are these other routers running on? Set yours to be as far away as possible from the strongest signal channels. You can use something like netstumbler (free) to see what channels the other networks are on - for example if quite often 6 is default. If so then make yours 1 or 11. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273758 Share on other sites More sharing options...
iobilly Posted February 23, 2010 Author Share Posted February 23, 2010 Yeah I have something simillar. but this is what I get from inSSIDer: I get upwards of 40APs. I get disconnected about twice a day and I need to restart my router before I could reconnect wirelessly (even if I am on channel 5, and based on Inssider, nobody is on that channel). I also tried another router (borrowed it, running DDWRT, WRT160N) and this happens too on that router. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273854 Share on other sites More sharing options...
+BudMan MVC Posted February 23, 2010 MVC Share Posted February 23, 2010 Sort them by signal strength.. And 1 channel away not really going to help much - you want to be as many channels away as possible. Only worry about the ones that have some strength to the signal. Well if you borrowed a N router and it was still happening.. How would a ad-hoc be any better? What networks do you see on the 5ghz? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273934 Share on other sites More sharing options...
iobilly Posted February 23, 2010 Author Share Posted February 23, 2010 the N router i borrowed didnt have 5Ghz - only at 2.4ghz. I do not see any wifi signals on 5ghz. okay, now that I have sorted them by signal, how do I choose channel? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273948 Share on other sites More sharing options...
+BudMan MVC Posted February 23, 2010 MVC Share Posted February 23, 2010 Well lets see the list. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273966 Share on other sites More sharing options...
iobilly Posted February 23, 2010 Author Share Posted February 23, 2010 Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273974 Share on other sites More sharing options...
agreenbhm Posted February 23, 2010 Share Posted February 23, 2010 On 23/02/2010 at 21:53, iobilly said: Based on that screenshot, 1 would be your best channel, since the networks with reasonable strength are on 6 and 11, for the most part. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273982 Share on other sites More sharing options...
iobilly Posted February 23, 2010 Author Share Posted February 23, 2010 ok ill give it a try but why would I still get disconnected, even when I am on 5, which nobody is on? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592273994 Share on other sites More sharing options...
+BudMan MVC Posted February 23, 2010 MVC Share Posted February 23, 2010 (edited) Like I said you need to be as far away as possible 5 and 6 are 2 close together - I agree channel 1 would prob be your best option. There is overlap on the channels Notice channel 6 starts at 2424.5 Channels 2 thru 5 are still in this range - but channel 1 ends at 2424.5, so no overlap. So you normally see channels 1, 6 and 11 used the most since these give the best separation. edit: You can also look to turning your fragmentation setting lower, and your RTS threshold setting and you could see if enabling CTS can help - it can be helpful when there is interference. But these setting can effect performance. Take a look at your netstat -s, are you seeing lots of retransmits, errors? Edited February 23, 2010 by BudMan Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592274062 Share on other sites More sharing options...
iobilly Posted February 23, 2010 Author Share Posted February 23, 2010 IPv4 Statistics Packets Received = 298513 Received Header Errors = 0 Received Address Errors = 11 Datagrams Forwarded = 0 Unknown Protocols Received = 14 Received Packets Discarded = 1428 Received Packets Delivered = 367666 Output Requests = 259672 Routing Discards = 0 Discarded Output Packets = 4068 Output Packet No Route = 8 Reassembly Required = 0 Reassembly Successful = 0 Reassembly Failures = 0 Datagrams Successfully Fragmented = 0 Datagrams Failing Fragmentation = 0 Fragments Created = 0 IPv6 Statistics Packets Received = 38686 Received Header Errors = 0 Received Address Errors = 0 Datagrams Forwarded = 0 Unknown Protocols Received = 3 Received Packets Discarded = 49 Received Packets Delivered = 85907 Output Requests = 80834 Routing Discards = 0 Discarded Output Packets = 827 Output Packet No Route = 90 Reassembly Required = 0 Reassembly Successful = 0 Reassembly Failures = 0 Datagrams Successfully Fragmented = 0 Datagrams Failing Fragmentation = 0 Fragments Created = 0 ICMPv4 Statistics Received Sent Messages 701 697 Errors 0 0 Destination Unreachable 689 693 Time Exceeded 0 0 Parameter Problems 0 0 Source Quenches 12 0 Redirects 0 0 Echo Replies 0 0 Echos 0 4 Timestamps 0 0 Timestamp Replies 0 0 Address Masks 0 0 Address Mask Replies 0 0 Router Solicitations 0 0 Router Advertisements 0 0 ICMPv6 Statistics Received Sent Messages 1643 3073 Errors 0 0 Destination Unreachable 279 277 Packet Too Big 0 0 Time Exceeded 0 0 Parameter Problems 0 0 Echos 0 0 Echo Replies 0 0 MLD Queries 0 0 MLD Reports 0 0 MLD Dones 0 0 Router Solicitations 0 705 Router Advertisements 93 0 Neighbor Solicitations 596 1495 Neighbor Advertisements 675 596 Redirects 0 0 Router Renumberings 0 0 TCP Statistics for IPv4 Active Opens = 7656 Passive Opens = 1906 Failed Connection Attempts = 158 Reset Connections = 278 Current Connections = 20 Segments Received = 339012 Segments Sent = 231891 Segments Retransmitted = 2431 TCP Statistics for IPv6 Active Opens = 121 Passive Opens = 118 Failed Connection Attempts = 5 Reset Connections = 116 Current Connections = 0 Segments Received = 2677 Segments Sent = 2675 Segments Retransmitted = 16 UDP Statistics for IPv4 Datagrams Received = 22272 No Ports = 1268 Receive Errors = 27 Datagrams Sent = 22983 UDP Statistics for IPv6 Datagrams Received = 68401 No Ports = 33 Receive Errors = 16 Datagrams Sent = 74289 How do I do the RTS? I remember seeing CTS on DDWRT, but I dont have access to that router anymore. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592274108 Share on other sites More sharing options...
+BudMan MVC Posted February 23, 2010 MVC Share Posted February 23, 2010 Maybe your router does not support tweaking these settings? I would give it a go on channel 1 for a while before looking to tweak those settings. On a bit of a side note - unless your specifically using ipv6 (are you using homegroups?) couldn't hurt to disable it. Some routers can have issues with it. Its easy enough to disable with a reg entry -- google for it. Just as its easy enough to turn it back on - remove the reg entry you created. So you could look into that as an option as well - but again I would give it some time running on channel 1 before making any other adjustments. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592274150 Share on other sites More sharing options...
iobilly Posted February 24, 2010 Author Share Posted February 24, 2010 I have this: I am using homegroup, will Ipv6 do anything to disrupt wireless signals? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592275816 Share on other sites More sharing options...
+BudMan MVC Posted February 24, 2010 MVC Share Posted February 24, 2010 Well if your using homegroups then you have to leave IPv6 enabled. It was just a thought - your router should be fine, normally if they don't like ipv6 they have issues right away. So how is it working on channel 1? Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592276330 Share on other sites More sharing options...
IrfanL Posted February 24, 2010 Share Posted February 24, 2010 Your are facing noise/interference issue here. RTS/CTS will not help you in this case as it is designed to resolve issue with congested wireless network & near-far scenarios. Do you have 802.11a under 802.11 Mode? BTW which device are you working with? If you have 802.11a mode go for it. It is likely that you will find less interference from 802.11a networks as 802.11a coverage area is smaller then 802.11b/g networks. If 802.11a is not available, there isnt much you can do. Because the actual solution is to either sheild or suppress the interfering signal. However, you may try to reduce the Fragmentation Threshold. I recommend you try 1520, 1008, and 514. And see which one gives is the least errors. Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592276376 Share on other sites More sharing options...
marche Posted February 24, 2010 Share Posted February 24, 2010 On channel 1, it seems to be a bit better, but I still get dropped connections. Also. whats strange is that sometimes when I get disconnected, I cannot reconnect at all. I cannot even access my router's web setup (even from a wired desktop). I have to reset the router completely. This was also the case with the linksys WRT160N running DDWRT. My router is Zyxel P-2602HW-D1A. I have tried to set the fragmentation threshold to 1520 I will observe what will happen. edit: i am also iobilly. seems i have logged into an account i dont use... Link to comment https://www.neowin.net/forum/topic/877268-creating-an-ad-hoc-wifi-network-with-80211n-5ghz/#findComment-592276542 Share on other sites More sharing options...
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