I’m unable to login to my routers through webfig from either inside the network or from the web via static IP. I’m using iPhone4s or iPad iOS6. Did not have a problem prior to upgrade.
I have a 493AH v.5.20
update: i find that if i change the service port www to something other than 80 i can gain access.
update 2: that only worked for a little while.
update3: i find that if i delete cookies I’m able to access the router. this needs to be done daily though. I’m sure there is a better fix.
Really. No one else is having this problem!? 
I have used chrome and safari from my 4s with iOS6 and have had no issues using ros 4.x - beta6rc4.
Jason
Sent from my iPhone using Tapatalk
I registered just to say that I’m seeing the same issue too on 5.22 with a 2011UAS.
Do you have any DST-nat rules configured for port 80 ?
If you do not specify the interface it may redirecting your requests.