Is it me?

Times when I realise I've been doing things the hard way.

Saturday, February 20, 2010

Invalid MAC Address Netgear Router

Just thought I would jot this down for anybody getting the error message "Invalid MAC Address" when reserving IP addresses on their Netgear Router.

When I googled this I found a lot of solutions suggesting modifying config files and restoring from them - just too much trouble for a lazy chap like me. I got to pondering and reckoned that the address validation is done by javascript when you submit the page, not by the routers serverside software.

The easy solution is to enter the mac address that you want, disable javascript in your browser and then submit the reservation, now re-enable javascript and you are done. Jobs a diamond.

If this has helped you a comment would be welcome..............
Posted by at

46 comments:

  1. AnonymousMarch 8, 2010 at 9:00 AM

    This comment has been removed by a blog administrator.

    ReplyDelete
  2. AnonymousMay 5, 2010 at 11:58 AM

    Wow thanks for a nice simple solution to a problem that bugged me.

    This is a nasty bug that has been around on netgear router for a while AND IS STILL NOT FIXED.

    ReplyDelete
  3. AnonymousMay 15, 2010 at 7:50 PM

    Thanks. Great solution. Why didn't I think of that ;-)

    ReplyDelete
  4. nightsurferJuly 31, 2010 at 12:58 PM

    Impressive solution - sure saved a lot of work.

    ReplyDelete
  5. AnonymousAugust 20, 2010 at 11:48 AM

    wow, seriously useful trick.

    thanks very much for that, a very smart way around it.

    i was using chrome, got to the point where you need to enter the new IP address and then went "under chromes hood" disabled javascript then submitted. worked like a charm :D

    ReplyDelete
  6. AnonymousOctober 12, 2010 at 4:48 AM

    Excellent. Thanks for this. Got an iPod Touch yesterday, and have had to compromise my security. Will try this tonight. Sounds like a winner tho.
    Thanks for posting! G

    ReplyDelete
  7. AnonymousOctober 25, 2010 at 11:33 PM

    awesome! Just worked for me, too. Thanks!

    ReplyDelete
  8. AnonymousDecember 26, 2010 at 4:20 AM

    brilliant,you should be commended for your valuable tip sir!

    ReplyDelete
  9. CrewJanuary 23, 2011 at 9:50 PM

    Super!

    ReplyDelete
  10. AnonymousFebruary 12, 2011 at 6:42 AM

    You're a hero! Worked for me. In Firefox, choose Tools / Options and then untick/tick Enable Javascript.

    ReplyDelete
  11. anmariMarch 1, 2011 at 8:54 PM

    This works

    If you temporarily disable MAC Filtering on the router then the iPhone will be able to connect. Then look in Attached Devices to confirm that the iPhone is connected.
    Once you've seen it in there then you can add it to the Access List from the "Available Wireless Stations" list.

    For some reason it accepts the MAC Address as valid once it's already seen it!

    ReplyDelete
  12. AnonymousApril 18, 2011 at 9:20 AM

    a billion thanks. That's class!

    ReplyDelete
  13. AnonymousJune 22, 2011 at 2:42 PM

    The 13th comment

    ReplyDelete
  14. AnonymousJuly 25, 2011 at 12:57 AM

    just googled your solution when i got the bug, worked like a charm !

    ReplyDelete
  15. AnonymousSeptember 10, 2011 at 11:01 AM

    Truly a miracle worker, sire! Your amazing brain has prevented me tearing out what little hair i have left in frustration at not being able to set up my wireless printer. All working now thanks to your good self. Have yourself a pat on the back from me, many thanks

    ReplyDelete
  16. UnknownSeptember 21, 2011 at 1:19 AM

    genius, worked for me

    ReplyDelete
  17. AnonymousNovember 6, 2011 at 1:27 AM

    What a brilliant idea! Thanks very much.

    I manage the router remotely so I was a bit nervous to do the back up/restore config and this worked perfectly well :-)

    ReplyDelete
  18. AnonymousNovember 27, 2011 at 1:04 AM

    I changed it by first entering 00-00-00-00-00-00 as the MAC address, then [apply], then enter overwrite the zeros with the correct address.

    ReplyDelete
  19. DanielDecember 21, 2011 at 1:46 AM

    Not working here (DGN 2000)
    In the "add" dialog, I entered IP, Mac and name; disabled JavaScript; press "add".
    ==>Frame turns blank.
    Re-enable java script; refresh page; back to LAN configuration
    ==> no change to reserved addresses.

    ReplyDelete
  20. DanielDecember 21, 2011 at 1:46 AM

    Not working here (DGN 2000)
    In the "add" dialog, I entered IP, Mac and name; disabled JavaScript; press "add".
    ==>Frame turns blank.
    Re-enable java script; refresh page; back to LAN configuration
    ==> no change to reserved addresses.

    ReplyDelete
    Replies
    1. AnonymousNovember 26, 2012 at 4:35 AM

      Replace the leading two numbers with 00. It seems to work.

      Delete
  21. AnonymousJanuary 17, 2012 at 11:23 AM

    Worked fine for me too, many thanks for this tip. I've been editing the .cfg file prior to this.

    ReplyDelete
  22. AnonymousJanuary 27, 2012 at 1:54 PM

    good work fella. worked a treat.

    ReplyDelete
  23. AnonymousFebruary 16, 2012 at 10:13 PM

    worked perfectly on dgn 2000 for me , thank you for this great advice , at first i thought my router was malfunctioning , but this completly fixed the issue

    ReplyDelete
  24. James (Jeffrey) T WangApril 5, 2012 at 8:38 AM

    A quick search reveals this as most similar to my issue w/a Netgear CGD24N.
    Alas your workaround will not work!:( Running Firefox 12.0 (latest stable release).
    There's no other solutions out there that I've found yet...
    It used to work fine, it's like it's hit some kind of limit on many reserved mac addresses are allowed.

    ReplyDelete
  25. James (Jeffrey) T WangApril 5, 2012 at 8:41 AM

    I'm not even trying to reserve an IP address.
    I'm merely trying to add the mac address to the allowlist.
    So that it can be allocated an IP address via DHCP.
    My only option is to change from allowlist to allowany.

    ReplyDelete
  26. AnonymousMay 12, 2012 at 10:50 PM

    Cunning. Like a fox.

    Thank-you.

    ReplyDelete
  27. MilesNovember 30, 2012 at 11:32 PM

    Thanks. It works. A pita to have to keep turning javascript on and off but hey. Laziness is the key here. I will sometimes work very hard to do the easy thing. People who just come up with a complicated solution are the cause of most of these problems anyway :) See http://thedailywtf.com/Articles/The_Complicator_0x27_s_Gloves.aspx.

    ReplyDelete
  28. UnknownFebruary 21, 2013 at 3:45 PM

    you can use mozilla instead of chrome .. works like a charm

    ReplyDelete
  29. shazMarch 1, 2013 at 1:03 AM

    Yep still a bug in March 2013. Many thanks for this fix!

    ReplyDelete
  30. DirtyDawgApril 4, 2013 at 5:53 PM

    THANK YOU!!!!111one

    ReplyDelete
  31. UnknownJune 5, 2013 at 1:28 PM

    Thanks you.

    netgear router

    ReplyDelete
  32. UnknownJune 12, 2013 at 5:14 AM

    Thanks for this useful information...its very informative!!!

    Visit the link for Linksys Router Technical Support

    Best Regards
    Alfanso

    ReplyDelete
  33. AnonymousOctober 17, 2013 at 8:12 AM

    Still works a treat.
    Thanks.

    ReplyDelete
  34. AnonymousJanuary 4, 2014 at 3:10 AM

    Hi Thanks, works perfect for me using waterfox. You have to enable Javascript to access the portal, go to the relevent section to add MAC reservation, add the details IP, MAC, Name and THEN you disable javascript and Submit the form.
    I found it difficult doing the above using Chrome, as the page kept refreshing when you change the Javascript setting.
    Good find!.

    ReplyDelete
  35. UnknownJanuary 29, 2014 at 2:48 AM

    Pretty good post. I just stumbled upon your blog and wanted to say that I have really enjoyed reading your blog post.
    Netgear Router Support please visit the link.

    Thankyou
    Lacy Brown

    ReplyDelete
  36. UnknownJanuary 31, 2014 at 3:09 AM

    Thanks for sharing.Great article very good job.
    Netgear Router Support please visit the link.

    Thankyou
    Lacy Brown

    ReplyDelete
  37. alex walkerMarch 29, 2014 at 3:49 AM

    I visit your site. this post is looking very informative and unique content...
    I really appreciate your fantastic post. Thanks for sharing such a nice tip. Good information and will be useful for us...
    Thanks for the post, works like a charm !
    visit Netgear Router Support my site.


    ReplyDelete
  38. alex walkerApril 8, 2014 at 3:29 AM

    I really appreciate your fantastic post. Thanks for sharing such a nice tip. Good information and will be useful for us.
    More Info:- Netgear Router Technical Support

    ReplyDelete
  39. alex walkerMay 18, 2014 at 11:44 PM

    Thanks you, this is perfect Solutions....!!!!, Really very impressed reading by your article!! Thank you. keep it up!!!!
    More info:- Netgear Router Technical Support

    ReplyDelete
  40. alex walkerMay 21, 2014 at 12:02 PM

    I feel very happy to read this post... thanks for sharing good content...
    More info:- Netgear Router Technical Support

    ReplyDelete
  41. AnonymousJune 18, 2014 at 2:26 PM

    The post is really nice very few of technology blogs having information about netgear router setup the post is so helpful for technical professionals. visit more info Netgear Router Support, You can reach Acetecsupport at their Toll Free No +1-800-231-4635 For US/CA.

    ReplyDelete
  42. AnonymousNovember 16, 2014 at 2:15 AM

    Muchas especies han demostrado su importancia en el control plagas cucarachas sevilla de moscas blancas (Aleyrodidae) e insectos guaguas
    (Diaspididae).

    ReplyDelete
  43. Netgear RouterApril 12, 2018 at 5:07 AM

    Nice Post!!! Thanks for share for helpful information.
    routerlogin
    netgear setup

    ReplyDelete
  44. UnknownMay 2, 2018 at 1:18 AM

    Thank you so much for sharing this kind of amazing blog about netgear router I'm always supposed to find this kind of informative blog because of it really helpful for me. For need help for Netgear Router contact at 0800-090-3220 or visit Netgear Phone Number UK

    ReplyDelete
  45. RouterloginMay 7, 2018 at 11:44 PM

    thanks for sharing great information..
    routerlogin net

    ReplyDelete

Subscribe to: Post Comments (Atom)