R6260 wont except serial number

[ingyn]

Went to regesiter my new  router wont take serial number. Its the number thats says serial number below it

[No1Mportnt]

Do you get any kind of error messages when attempting to register the modem?  Is there a link at the site to use if you are having issues registering your device?  If there is try using that link. You might also try contacting support directly.

[plemans]

Are you getting an error message? 

What notice is it giving you? 

Is this a new router? was it renewed/refurbished/used?

you can check the registration faq. 

https://kb.netgear.com/1160/NETGEAR-Product-Registration-FAQ

there's a contact in there for fixing serial number issues.