TL-SG105E v2 - Web interface unresponsive - Config utility works
TL-SG105E v2 - Web interface unresponsive - Config utility works
Hardware Version : v2
Firmware Version : 160526
ISP :
Hello,
I have a brand new SG105E v2 which has been upgrade to the latest TL-SG105E(UN)_V2_160526 firmware. I have a static IP set on my laptop to 192.168.0.5 and am able to reach and configure the switch using the utility but when trying to reach the web-interface of the switch I get a blank page using both Chrome, and Firefox. A packet capture showed that my browser was being sent a page from the switch with a 403-Forbidden code. I find this very odd as I'm not even receiving a prompt to log-in, in order to use the default username and password.
I'm assessing the product for an ISP to use with small home installations which leverage multicast for their IPTV service. The IGMP snooping feature is my primary reason for investigating this product. While I personally have no issues using the configuration tool, it's not an option for my client as all of their technicians have been issued MacBooks which cannot run the utility and must be able to configure the switch via web interface.
Thanks for your help!
EDIT: Adding blank page source
TD width=1> ",s+=" ",s+=" ",s+=" ",s+=' ",s+="
'+r+"",s+="
",s+='The user name can not be empty.',document.getElementById("ret_info").innerHTML=e,document.getElementById("ret_info").style.display="block",document.forms[0].username.focus(),!1):document.forms[0].username.length>16?(e='The length of the user name must be less than 16 characters.',document.getElementById("ret_info").innerHTML=e,document.getElementById("ret_info").style.display="block",document.forms[0].username.focus(),!1):""==document.forms[0].password.value?(e='The user password can not be empty.',document.getElementById("ret_info").innerHTML=e,document.getElementById("ret_info").style.display="block",document.forms[0].password.focus(),!1):document.forms[0].password.legnth>16?(e='The length of the user password must be less than 16 characters.',document.getElementById("ret_info").innerHTML=e,document.getElementById("ret_info").style.display="block",document.forms[0].password.focus(),!1):void 0}window.parent!=window&&(window.parent.location="/");var errType=logonInfo[0];window.onload=function(){0!=errType||-1==top.location.href.indexOf("logon.cgi")&&-1==top.location.href.indexOf("lupg_abort.cgi")?(document.body.style.display="block",resize("center")):document.location.href="/";var e=document.getElementById("username");if(e.focus(),e.select(),resize("center"),0==errType)document.getElementById("ret_info").style.display="none";else if(1==errType)document.getElementById("ret_info").style.display="block",str='The user name or the password is wrong.',document.getElementById("ret_info").innerHTML=str;else if(2==errType)document.getElementById("ret_info").style.display="block",str='The user is not allowed to login.',document.getElementById("ret_info").innerHTML=str;else if(3==errType){var t='The number of the user that allowed to login has been full.';document.getElementById("ret_info").innerHTML=t,document.getElementById("ret_info").style.display="block"}else if(4==errType){var t='The number of the login user has been full,it is allowed 16 people to login at the same time.';document.getElementById("ret_info").innerHTML=t,document.getElementById("ret_info").style.display="block"}else if(5==errType){var t='The session is timeout.
Please login again.';document.getElementById("ret_info").innerHTML=t,document.getElementById("ret_info").style.display="block"}else str='Unkonwn error',document.getElementById("ret_info").innerHTML=str,document.getElementById("ret_info").style.display="block";SetBackgroundImageCache(this)};
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Damoms wrote
I have a Canadian version C7(CA) and experiencing the same issues connnection a laptop with Qualcomm Atheros QCA61x4A adapter. Is there a Canadian version of the beta firmware that is supposed to fix the issue? Can a flash a US or EU version? Will it brick my router? What's the best course of actions for me?
There is nothing to fix on TP-Link's side, since this is a Windows-related bug. As for firmware for wireless equipment such as Archer C7 you should only use firmware appropriate for your region due to different regulatory conditions.
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let me help all to understand why this happens. Magic word MTU.
The mandatory TCP packet length of hardware interfaces is 1500 bytes. IEEE802.1q VLAN tagging adds 4 bytes. ANY browser will follow your NIC setting of 1500 bytes. So, the switch sends 1504 bytes while the NIC in the computer wants/understands 1500 bytes. The overhead of 4 bytes is seen as content of the next packet. But the header of 32 bytes is missing, so your browser waits for another 1496 bytes. Waiting forever...
There is a solution called TCP ADJUST-MSS (bytes). if this value is set for 1496 bytes + 4 bytes for VLAN tagging it works. it forces the switch to send the payload in 1496 bytes
The software does this and so does ANY hypervisor. Some flat OSses do this 'trick' with specific NIC drivers. Advanced drivers with VLAN Tagging like in hypervisors.
Fred
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