fuzzythinker:

 

Router is a Netgear dg834g 

 

Right, well if its that model - http://www.downloads.netgear.com/files/GDC/DG834GT/DG834GT_DS_26Oct04.pdf

Then is not even an ADSL2+ router and its not even got 802.11n. Really, its done its dash, you need to replace that before blaming your ISP. You can pick up a really basic but still good enough for basic stuff for $60-$90 from the warehouse (or any number of other places).

http://www.thewarehouse.co.nz/red/catalog/product/TP-Link-Wireless-N-150-Mbps-ADSL2%2B-Modem-Router-TD-W8950N?SKU=1848987

Or

http://www.pbtech.co.nz/index.php?z=p&p=MODTPL8960&name=TP-Link-TD-W8960N-300M-Wireless-N-All-In-One-ADSL2

http://www.pbtech.co.nz/index.php?z=p&p=MODDLK2790U&name=D-Link-DSL-2790U-Wireless-N300%28300Mbps%29-ADSL-Modem

http://www.pbtech.co.nz/index.php?z=p&p=MODAS0126&name=ASUS-DSL-N12E-ADSL-Modem-Router-w-Wireless-N300-4x

http://www.pbtech.co.nz/index.php?z=p&p=MODTPL8980&name=TP-Link-TD-W8980-N600-Wireless-Dual-Band-Gigabit-A

http://www.pbtech.co.nz/index.php?z=p&p=MODDLK2468260&name=D-Link-DSL-2880AL-Dual-Band-Wireless-AC1200%28300+86

There is any number of choices that cost bugger all and will likely solve your problems.