{"id":169,"date":"2012-12-17T13:41:25","date_gmt":"2012-12-17T11:41:25","guid":{"rendered":"http:\/\/blog.cloud-client.info\/2012\/12\/17\/tip-building-a-roaming-solution-with-thin-clients\/"},"modified":"2012-12-17T21:06:02","modified_gmt":"2012-12-17T19:06:02","slug":"tip-building-a-roaming-solution-with-thin-clients","status":"publish","type":"post","link":"https:\/\/blog.cloud-client.info\/?p=169","title":{"rendered":"Tip: Building a roaming WiFi solution with Thin Clients"},"content":{"rendered":"<div class=\"f1b57b4156f3c43e8a7d72dffc4b2e52\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script type=\"text\/javascript\"><!--\r\ngoogle_ad_client = \"ca-pub-5449811010861855\";\r\n\/* blog.cloud-client.info 2 *\/\r\ngoogle_ad_slot = \"6689524735\";\r\ngoogle_ad_width = 468;\r\ngoogle_ad_height = 60;\r\n\/\/-->\r\n<\/script>\r\n<script type=\"text\/javascript\"\r\nsrc=\"http:\/\/pagead2.googlesyndication.com\/pagead\/show_ads.js\">\r\n<\/script>\n<\/div>\n<p><a href=\"https:\/\/blog.cloud-client.info\/wp-content\/uploads\/2012\/12\/netgear.jpg\" title=\"Netgear WiFi Bridge N900\"><\/a>Hi Folks,<\/p>\n<p>sometimes user try to setup a roaming solution together with Thin Clients and discover different connection issues and the roaming in general works bad.<\/p>\n<p>Reasons for roaming issues:<\/p>\n<p>&#8211; The\u00a0WiFi Adapter\u00a0is not designed for\u00a0a\u00a0roaming enterprise solution &#8211; This happens very often and mostly WiFi devices are designed for a stationary or home\/office use where roaming is not required by default. This includes also the WiFi Adapter used in the IGEL extension food and nearly every WiFi Adapter sold at retail market&#8217;s.<\/p>\n<p>&#8211; To small Antenna&#8217;s, a USB WiFi dongle comes with a 2 up to 5 cm (1 or 2 inch)\u00a0antenna and this is in general no deal for a roaming WiFi connection. If you compare this to a Laptop antenna, which is very often 15cm or more included into the display part of an\u00a0&#8220;enterprise&#8221; Laptop, it\u00a0has no Chance to\u00a0provide a good result. Retail\u00a0home use\u00a0Laptop&#8217;s do also mostly\u00a0not provide a large antenna, this can be compared quite easy&#8230; Use a 600$ home\u00a0and a 1300$ enterprise Laptop and compare the WiFi signal quality, in 80% of all test scenario&#8217;s you will\u00a0see a big difference here and the enterprise Laptop provide a much better signal quality.<\/p>\n<p>&#8211; Antenna is covered by parts of the device case and\/or the signal is blocked in the\u00a0direction to the Access Point.<\/p>\n<p>How to solve this?<\/p>\n<p>Simple: Forget WiFi network card&#8217;s or USB Adapter&#8217;s and take a new approach to setup a roaming solution: Use an Ethernet to WiFi bridge. This way is more expensive then a funny USB WiFi gimmick solution, but it will work and you have a lot of different solutions available depending on the scenario.<\/p>\n<p>Benefit: The thin client\/end device\u00a0don&#8217;t has to deal with the WiFi connection at all, these device also\u00a0do have more seperate antenna&#8217;s and very often more then one connection interface\/circuit to provide permanent connection stability. It&#8217;s driver independent and\u00a0it will work with Windows CE, Linux and Windows based end user devices out of the box thru the ethernet port.<\/p>\n<p>Usage: Industrial WiFi requirements, Thin Client and WiFi device are mounted on a cart, truck, construction vehicle or similar. This solutions is not or only limited useable for regular Office walk thru designs.<\/p>\n<p>Devices:<\/p>\n<p align=\"center\"><a href=\"https:\/\/blog.cloud-client.info\/wp-content\/uploads\/2012\/12\/netgear.jpg\" title=\"Netgear WiFi Bridge N900\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.cloud-client.info\/wp-content\/uploads\/2012\/12\/netgear.jpg\" alt=\"Netgear WiFi Bridge N900\" style=\"width: 270px; height: 174px\" height=\"152\" width=\"200\" \/><\/a><\/p>\n<p>From the lower price segment\u00a0these devices will work good\u00a0for small\/medium environment&#8217;s:\u00a0Netgear WiFi Bridge N900, Price ~100 US$, two antennas (picture)\u00a0or Cisco Small Business &#8211; WET200 Bridge, Price ~130 US$ with\u00a0two antennas. For outdoor solutions and high end requirements (large range\/two or more connection circuits)\u00a0the price\u00a0range can go up\u00a0to 1000 US$ or more. In any way: All devices that can\u00a0be used\u00a0as a WiFi Bridge (mostly all Access Points\/Routers)\u00a0can be used for this trick and they provide much better results then any WiFi USB dongle will do.<\/p>\n<p>Update: I&#8217;ve been asked for an high end outdoor solution device, look @ Funkwerk\/Bintec (<a href=\"http:\/\/www.teldat.de\">www.teldat.de<\/a>) for Bridge devices, the biggest devices\u00a0can handle up to a 5km (4 Miles) distance and they always come with multiple circuits and antennas like the W1002n (up to 1000m range). But please: These devices are mostly not designed for indoor use and are very expensive (between 400 and 3000 US$)! So for industrial use\u00a0in construction areas, mines or similar it might be ok but for the use in a habitation or indoor: Forget it please!!!<\/p>\n<p>Cheers<br \/>\nMichael<\/p>\n<p>P.S.: Like everytime no guarantee from my side and you need to test this! This article is also only for mobile clients\u00a0moving around\u00a0in a building or area a lot!<\/p>\n<p>P.S.2: This will\u00a0only provide a little\u00a0help against radio interference, check this out too if the issue is not solved by an Ethernet to WiFi bridge! I&#8217;ve got an old\u00a0 USB Bluetooth dongle that kills\u00a0any WiFi (B\/G\/N=2.4 GHz)\u00a0connection in a 5m (15 feet) area as example&#8230;. \ud83d\ude42<\/p>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Hi Folks, sometimes user try to setup a roaming solution together with Thin Clients and discover different connection issues and the roaming in general works bad. Reasons for roaming issues: &#8211; The\u00a0WiFi Adapter\u00a0is not designed for\u00a0a\u00a0roaming enterprise solution &#8211; This happens very often and mostly WiFi devices are designed for a stationary or home\/office use [&hellip;]<\/p>\n","protected":false},"author":1423,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[16,20,15,18,7,23],"tags":[],"class_list":["post-169","post","type-post","status-publish","format-standard","hentry","category-udesesw7","category-lxarm","category-udlsos","category-none-igel","category-solutions","category-wifiwlan"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p3AZQ3-2J","_links":{"self":[{"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=\/wp\/v2\/posts\/169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=\/wp\/v2\/users\/1423"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=169"}],"version-history":[{"count":0,"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=\/wp\/v2\/posts\/169\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cloud-client.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}